r .^ Li-;;: IL^. '^';^':| H (^ .^^■. kLil • Oov o1 San BIOMEDICAL imm IJNIV£RSITYC9A(i;ftJH3«WR; SAN DIEGO APR 3 OREITB c*rD o itP 2 6 19M OCT 3 0 REC'U CAYLORO PRINTED IN US * 7 Digitized by tine Internet Arciiive in 2008 witii funding from IVIicrosoft Corporation http://www.arcliive.org/details/collectedworksof01latli THE NEW SYDENHAM SOCIETY. INSTITUTED MDCCCLVIII. VOLUME LXVII. D\ego of San THE COLLECTED WOEKS DR. p. M. LATHAM, MEMOIR BY SIR THOMAS WATSON, BART., M.D. EDITED FOR THE SOCIETY BT EOBEET MAETIN, M.D., Cantab., FELLOW OP THE KOTAL COLLEGE OP PHYSICIANS; LATE PHTSICLMf TO ST. BAETHOLOMEW'S HOSPITAL. IN TWO VOLUMES. VOL. I. THE NEW SYDENHAM SOCIETY, LONDON. MDCCCLXXVJ. PEINTED BY W. CLINKSKEL, AT EA6TCHEAP PEIKTIKG WOEKa. EDITOR'S PEEFACE. "When first asked by the Council of tlie Sydenham Society whether I would undertake to edit a reprint of the writings of Dr. Latham, I hesitated, somewhat, before giving an affirma- tive answer. I hesitated because I was told, in the courteous letter con- veying the wishes of the Council, that although they " did not purpose, in the least, to try to modernize the work, or to bring the information up to the present day," still, that it ^cas intended the editor should " annotate as might seem needful to prevent misunderstanding." But my doubting did not last long. For a very little re- flection, a few words of conversation with the Secretary of the Society, and my recollection of Dr. Latham's own comments upon commentators (see his preface to this volume) soon con- vinced me that I might safely undertake the work without endangering its success. It seemed to me that whatever the additions which might, perhaps legitimately, be made as supplementary to the author's text, and whatever the different interpretations which might, with our present knowledge, be given to some of his subject- matter, still, that the " sense of the author " was always "clear beyond dispute," and would only too probably become unintelligible when encumbered with the help of so-called " ex- planations." A simple reprint appeared to be all that was desirable; and in this case my duties would begin, and my responsibilities would end, with a faithful revision of the press. In truth it would be hardly possible to add much, of abso- lutely certain knowledge, to the grand broad outline which Dr. Latham drew of heart disease — its general symptoms and its physical signs. And surely the attempt to fill in that outline with some comparatively minute and unimportant detail, would yi editor's preface. be as presumptuous, and out of place, as would be tbe en- deavo"ur, on the part of some artist " prentice-hand," to sup- plement in like manner the simple grandeur of a Raphael cartoon ! Moreover, in the preface to his first series of lectures Dr. Latham writes : " Auscultation " (he is now speaking of the limgs) " is capable, I have thought, of being greatly simplified for practical purposes. At all events, unless it be so, it can never be successfully taught ; the knowledge derived from it must be confined to a few physicians of hospitals, and the pro- fession at large can never expect much benefit from its use. " Whether I have succeeded in accomplishing what I think so desirable, and have cleared auscultation of its mystery in any degree, others must judge. But thus much I can safely say, that the intelligent student, by attending to the few character- istic sounds which I have pointed out, and taking pains to understand their import, and guarding himself against over- refinement, is able in a few weeks to discern the leading truths connected with auscultation, and in a few months to use it and trust it as his safest guide in the diagnosis of pulmonary diseases. " Such are the objects which these lectures have in view. They do not pretend to teach the clinical student any single thing peremptorily or dogmatically, but only to furnish him with certain aids and assistances by which he may be better able to teach himself." Again, in the preface to this volume on diseases of the heart he says : " The clinical diagnosis of diseases of the heart owes all the higher degrees of certainty to which it has been carried in our own times, entirely to auscultatory signs. Accordingly it became necessary for me to give some accoimt of their theory and their uses, and I have desired to do it as simply as possible. Their perfect theory, however, lies deeper than our present knowledge, and all the uses of which they are capable must wait to be developed by more and more multiplied observations of the sick. " But already there is some true light in which these signs may be regarded ; and already there is a large extent to which they may be followed and trusted as the faithful exponents of diseases of the heart. And although on this subject doubtless EDITOR^S PREFACE. vii there has been error and mistake, and a good deal has been taken for more certain, and something for less certain, than it really is, so that we have both to learn and to unlearn, yet enough is already known to make the diagnosis of diseases of the heart hardly anything else than a just appreciation of their auscultatory signs." With such language before me, with protests so earnest and so potent against the dangers of over-refinement, I cannot but think that any poor foot-note of mine, upon, for instance, "presystolic murmurs," would be eminently ill-timed. Sir Thomas Watson, in the touching biographical notice of Dr. Latham which he wrote for the St. Bartholomew's Hospital Hoports of 1875 (with a reproduction of which he allows the enrichment of this volume), has done ample justice to the powers of our author's mind, and to the eloquence and grace of his diction. But I may be permitted perhaps, very briefly, to allude to some of the more especial characteristics of his writing. I would put first of all the breadth of view with which he contemplates every subject he approaches, and with which he includes all the side issues in connection with it. He is discussing, for instance, the question of albuminuria — " the greatest single pathological fact disclosed during the pre- sent century " — and after alluding to the many diseased con- ditions with which this fact is coincident, and after entertaining the question of the blood being " the common agency by which these multitudinous eifects are brought to pass," he goes on to speak of the prior causes leading up to these efiects, to be found, he says, in " the habits, the necessities, the misfortunes, and the vices of men," and so arrives presently to touch upon one of the burning questions of to-day, intemperance, and the moral obligation of the physician to aid in the prevention of what is so often incurable. Again, he is speaking of disease as a great physiological teacher, and straightway he alludes — and somewhat strongly too, as might be expected from one of his exquisitely sensitive nature — to the subject of vivisection. Let it not be supposed, for one moment, that he absolutely condemns the practice of experimenting upon living animals. He knew far too well how greatly indebted was his profession to a succession of experimenters, from a Harvey to a Hope, for viii editor's preface. all its certain knowledge of tlie circulation, to allow of his denying the opportunity for well-considered investigations. It was rather with the wish of elevating the experiments insti- tuted by disease, and of contrasting their perfection with the imperfection of all human attempts to imitate them, that he expresses himself as he does, and gives a somewhat lukewarm approval. How greatly ought we to respect him for his honesty, his fearlessness, his candid impartiality, his readiness to admit a difficulty, to suggest a doubt, to confess his ignorance. Take, for example, his mode of handling the subject of the treatment of acute rheumatism with all its complications in Lecture X. How thoroughly and conscientiously has he gone through all the varieties of treatment, by bleeding, by opium, by calomel, by colchicum, b}'' purgatives ; how honestly has he contemplated the possibility of the disease wearing itseK out on the do-nothing treatment ; and how logically does he sum up in favour of what he calls the " compoimd method " which "while it works with all the means which have been recommended, stops short of what is harsh and excessive in their use, and yet compasses with more certainty the successful result." And here I shall venture, in anticipation of the objections which may be made to what has been, and what will be called "Dr. Latham's old-fashioned notions of treatment," to give at length from one of his later essays (presently to be reprinted, I trust, together with others of the same date) his own more matured views on this matter of " old-fashioned treatment," of new-fashioned treatment, and of no treatment at all — preferring, as Sir Thomas "Watson says, to make him " his own eloquent expositor," rather than run the risk of failing to do him justice by any imperfect summary of mine. " On my first entrance into mj profession, and for some time afterwards, nothing was less intelligible to me than the writings of our great physician. All his discoursings about epidemic constitutions, and stationary fevers, and intercurrent diseases, and the same diseases needing different treatments from time to time, were to me dark and mysterious. And just the same, I am persuaded, is the case with every man who studies medicine ; and the more so, the more he finds himself thus early in the presence of real disease, and in the society of editor's preface. IX those who, like himself, are daily watching it, and ministering to it, and comparing notes about it. For then the mind is at its freshest and its best, and is most apt for observation. It holds strongly to its own conclusions : and why should it not ? It takes for absolute truth what has already come to it authen- ticated by a hundred instances : and why should it not ? It is not yet upon the look-out for what may gainsay or invalidate its own well- observed facts concerning diseases and remedies : why should it ? Tell, therefore, the student, and the physician of a few years' standing, that there is something more in diseases, and in the effects of remedies upon them, than can be seen and known from any number of individual patients during any given period of time, and he will neither understand j^ou nor believe you. Yet there is something more, nevertheless ; and physicians at length come to own it. " Choose almost any febrile disease you please, and question the experience of honest and well-informed physicians about it, and what it was, and how it was best treated at their own time and place of observation ; and you will find them tolerably well agreed. But take this experience and agreement of theirs to determine its nature absolutely, and fix the canon of its treat- ment for all places and all times, and you will run into a great practical delusion. Still, a man must have lived long enough to see many phases of medical practice, and been himself engaged in it all the while, before he can be in a condition freely to acknowledge what is here implied. " Take pneumonia. It has been treated by bleeding, and got well. It has been treated by brandy, and got well. It has been left to itself, and got well. And the bleeders, the brandy- givers, and the doers of nothing at all, respectively, have had a vast deal to say for themselves and against their rivals. And which of them are to be our guides and masters in the treat- ment of pneumonia ? None of them for a single day, much less for always. Besides, the treatment of pneumonia happens just now to be a matter of high controversy ; and from controversy often comes exaggeration. And exaggeration often does the work of falsehood unawares. Therefore I would willingly have chosen some other instance, but that I wanted such internal febrile disease for illustrating my purpose, as, whenever it exists, declares itself infallibly. And since erysipelas well X ' editor's peeface. served my purpose, because all about it was plain and unmis- takeable to the eye, so now pneumonia will do the same, because, of internal diseases, it and all about it are best ascertained by tbe ear. " Now, we have the best testimony which the ear can afford to the fact that jjneumonia has gone through all its processes of disease and reparation, now advancing, now receding, until the lungs have finally recovered the conditions of health, when it had received no formal medical treatment whatever. Again, we have the sure witness of the ear to the same fact, when the pneumonia had been treated by brandy ; and yet again to the same fact when it had been treated by venesection. " Here the means (for even the doing of nothing may be now deemed to exercise a positive influence), the means, I say, and the end, are things so obvious, and are found so closely follow- ing each other, that it is impossible not to put down their sequence to the account of natural connexion. And this being the case, and there being such vast odds between doing nothing, giving brandy, and drawing blood, there is no wonder, if the current of a man's experience had run generally in favour of any one of the three, that he should hold one to be absolutely and always right, and the other two absolutely and always wrong. " JSTo wonder, indeed. But then practical medicine is unlike all other things in the world. It has its own conditions, and they prohibit all such summary conclusions as these. Let a man use his own experience as best he can for the present ; but let him not, u2:)on the strength of it, rebid^e the experience of all past times, and dictate to the experience of all future ; for if he live long enough, nothing is more likely than that he may find himself fallen under his own reproof, and inconveniently confronted by his own maxims. From having been a bleeder he may become a stimulator, or a passive looker-on in cases of pneumonia. He may find himself interchangeably all three in the course of thirty years. " And what is the explanation of all this ? People not over well disposed towards us and our profession (and there are many such) find a sufiicient key to the whole matter in the caprice of medical men, and they take this key of theirs and turn the lock, and bar the door against all further question ! EDITORS PREFACE. xi * It is neither more nor less,' say tlicy, ' tlian tlic caprice of physicians ; so let us have done with it and them.' " But let the world think o£ us as it pleases, there is a rational practice of medicine nevertheless, and let medical men them- selves still be right and wrong by turns, seeing clearly and doing successfully what is at present to be seen and done, yet mis- taking the same for something more sure and permanent than it really is ; finding (as it were) a fragment of truth, and learning well what it will now bear, and now safely trusting their own weight upon it, let them foolishly deem it a rock and build a castle upon it. Whatever physicians may be, or the world may think of them, there is, I say, a rational practice of medicine nevertheless, and there are causes sufficient to explain its greatest anomalies." He then goes on to glance cursorily at what these causes are : — an individual man's constitution ; the external agencies, good and bad, by which he (or a community of individuals) is surrounded, and by which his " vital being " is aifected ; and lastly, and more fully, he touches upon the question of " Epi- demic Constitution " as also influencing and modifying treatment at difierent times. And here again I am tempted, especially just now, and in view of (may it not be asserted?) a change of treatment steadily gaining ground — whether caused by a change in the " Epidemic Constitution " of these later two or three years, or whether by a better, a more just, estimate of the powers, and of the weakness, of alcoholic stimulants I dare not say — I am tempted to give one more extract from the same fertile source. "All general terms in use among physicians had need to be jealously watched. Even strength and weakness, simple and innocent as they look, have by turns been the marring of us. The terms themselves cannot be dispensed with ; and so long as they truly represent (as they always ought) an aggregate of things real, and verifiable in their details, they serve a useful purpose. But, failing this, they become pernicious abstrac- tions. In my time Medicine has been going through a specu- lative crisis of two opposite kinds by turns ; and strength (so- called) has ruled the one, and weakness the other. Beyond all question, during its critical ascendancy, abstract strength cost the world many lives by its practice of blood-letting; and xii EDITOR'S FREFACE. abstract weakness, in its turn, has cost the world many also by its practice of brandy-giving. I have not statistics to show with exactness which of the two has levied the larger mortal tax upon mankind. My impression is that the bad pre-eminence belongs to the latter." Finally, I would have the readers of this volume ponder well over the* subjoined pregnant paragraph of Sir Thomas Watson, writing of Dr. Latham's account of the Millbank Penitentiary epidemic; I would have them study carefully Lect. XIV., which is devoted to a consideration of the antiphlogistic and reparatory powers of mercury as illustrated by its efi'ects in iritis ; and I would have them read once more Sir James Paget's sectional address in surgery, given at the meeting of the British Medical Association at Norwich, in 1874, before they come to any (foregone) conclusion upon so-called " old-fashioned treatment." * " One absolute fact which it records is well worth remembrance in the present sceptical mood of some among us as to the value and the virtue of drugs. 'I'he disease, whatever may have been its real nature and origin, was at length, after defying almost every other conceivable method of rational treatment, at once arrested in every instance in which mercury was given and pushed to the extent of producing its specific effect upon the gums." Queen Anne Street, Aurjust, 1876. in iMtmon'am. DE. PETER MEKE LATHAM.' BY SIR THOMAS WATSON, Bart. Dr. Peter Mere Latham was the second of tlie three sons of Dr. John Latham and of Mary, the daughter of the Rev. Peter Mere, Vicar of Prestbury, in Cheshire. Besides their relation of consanguinity, the quahties and fortunes of these two men were in many points so interwoven and similar, that any memoir of the son, in these pages especially, might justly be deemed defective, which did not include some record, however brief, of the father also. Both of them were eminent London physicians in their day ; both held in succession the office of physician, first to the Middlesex and then to this great hospital ; both were appointed Physicians Extraordinary to the reigning Sovereign; of both of them it may confi- dently be added that they were men of blameless life and exemplary character. Of the father I had some partial knowledge during my early residence in Lon- * Eeprlnted, by permission, from St. Bartholomew's Hospital Eeports, vol. xi. XIV IN MEMORIAM. (Ion; the son, during the whole of my professional life, was my most intimate and familiar friend. Dr. John Latham then, was born on the 29th of December, 1761, at Gawsworth, in Cheshire, in the house of his great-uncle, the Eev. William Hall, then rector of that parish. He received his early education in the country. In 1 778 he was entered at Brazenose College, Oxford; and in 1788 he was created M.D. of that University. In that year also he settled in London, after having practised for two brief periods at Manchester and Oxford. He became a Fellow of the London College of Physicians in 1789 ; and in the same year was elected physician to the Middlesex Hospital. That office he resigned in 1792, upon his election as physician to St. Bartholomew's. From 1813 to 1819, inclusive, he was President of the Col- lege of Physicians. His first London residence was in Fenchurch Buildings, where his son, Peter Mere, was born. In 1795 he moved to the house in Bedford Eow, which the well-known Dr. Reynolds then quitted for Bedford Square. Here he practised his profession with immense repute and success, until, at the early age of forty-six, his health utterly broke down under excessive and incessant toil, and he was compelled to retire into the country, as it was thought, to die. He went to an estate which he had purchased at Sandbach in Cheshire ; and there, under the beneficent influence of mental rest and pure air, recovered completely, so as to be able to return to London, where he lived, in Harley Street, for twenty years, in better health and more moderate practice than before. He finally left IN MEMORIAM. xv London for Iiis scat, Bradwoll Hall, in 1829, and died there in 1843, from the effects of stone in the bladder, in the eighty-second year of his age. What I remember of him is chiefly that he was very hospitable ; kind and helpful to young j^^^y^i" cians ; courteous, of winning manners and address ; and highly esteemed and popular, both with his patients and with his medical brethren. It has been written of him by the truthful pen of that son who is the chief subject of this memoir, that ''he was singularly temperate when temperance was hardly yet thought to be a virtue, he was most pure in life and conversation when to have been otherwise would have provoked no censure, and he was not ashamed to be religious when religion had yet no recommenda- tion or countenance from the world." His son, Peter Mere, was born on the first day of July, 1789. He was a very delicate child, and was sent for the first rudiments of his education to Sand- bach, where he resided with his paternal grand- mother, and attended the free school of that town, ol which the clergyman of the parish, the Rev. Charles Lockett, was master. About a year later, in 1796 or 1797, he was transferred to the Grammar School of Macclesfield, at that time under the charge of Mr. Davis, the husl^and of his mother's sister. There he remained until he began to reside at Brazenose College in 1807. He took his M.D. degree at Oxford in 1818, and in the same year became a Fellow of the xvi IN MEMORIAM. College of Physicians. He had come from Oxford to study medicine at this hospital in 1810. In 1815 he was elected physician to the Middlesex Hospital ; and to St. Bartholomew's in 1824. Beaten first from this post, and at length from practice, by persistent and severe attacks of asthma, he withdrew in 1865 to Torquay, where he died on the 20th of last July, having just entered his eighty-seventh year. That he lived so long was a marvel to all who were aware of his bodily constitution. I have said that in childhood his health was delicate. In mature life, when he was living in London, besides a slight twist in his spine, which tilted one shoulder a little upwards, his lungs were known to be extensively emphysematous, and his paroxysms of asthma by night were so extremely violent and exhausting, that many times he fully expected to die before the morn- ing. Had he remained longer in London it is almost certain that some one of such paroxysms would have been fatal. He had twice been married ; first to Diana Clarissa Chetwynd Stapleton, grand-daughter of Lord Chetwynd ; she died in 1825, within a year of their marriage; and secondly, to Grace Mary Chambers, third daughter of Commander David Chambers, R.N. By her he had four children, who all survive him ; two sons, both married, Weyland Mere and Philip Arderne; and two unmarried daughters, Diana Frances and Mary Grace, by whom, together with Miss Gooch, who lived with them at Torquay, the daughter of his early friend, Dr. Gooch, he was IN MKMOUIAM. Xvii assiduously and tenderly nursed throughout the whole of liis declining- years. As a school-boy he is said to have been idle, and a hater of Latin and Greek. If so, his tastes and habits must have altered greatly in after life; for in 1809, having made two previous failures, he gained the undergraduate's prize for Latin verse at Oxford. The subject was " Corinth." It is worthy of mention, if only in proof that the teaching at Macclesfield had been sound and effective, that his elder brother John and his younger brother Henry, who also were trained in that school, achieved, both of them, while at Braze- nose, a similar distinction. One of the unsuccessful competitors for the same prize in 1812, when Henry obtained it, was Arnold, afterwards the famous head- master of Rugby. I was told also by a profound classi- cal scholar, who was possessed with the strange curiosity to read all the printed Harveian Orations, that sub- sequently to the date of Sir George Baker's, that by Dr. P. M. Latham was one of the very few the Latinity of which he could praise. Indeed, his English style bespoke a master of Latin ; slightly quaint, perhaps, it might sometimes be, but stately withal, and always clear, vigorous, and exact. Of the facility in writing Latin verse acquired by the eldest and the youngest of the three brothers ample evidence exists in two pleasing little volumes, the one by John Latham, D.C.L., unpublished, con- taining '■'■ English and Latin poems, original and translated ;" the other, published in 1864, by the Rev. Henry Latham, entitled ''Sertum Shaksperianum, sub- nexis aliquot aliunde excerptis floribus." h xviii IN MEMOEIAM. The poems of the eldest brother — poems of great beauty, humour, and tenderness — were composed under the sore disadvantage of almost total blindness. At the early age of twenty his hopes and promise of .success as a barrister were destroyed by a severe attack of ophthalmia, which left him with only enough of sight to guide his steps, but for ever afterwards unable to read a word of writing or of print. When Dr. Latham became a student at this hos- pital, the three physicians were Doctors Roberts, Powell, and Haworth. It was the custom of that time — before clinical clerks had been heard of in London — for the senior students, especially those who came from the Universities, to attach themselves to some one of the physicians, to watch his practice, and in a certain sense and degree to superintend his patients. Dr. Latham so waited upon those of Dr. Haworth. But, anxious to make his study and knowledge of disease as comprehensive as was possible, and to familiarise himself with the puzzling diseases of the skin among the rest, he began, during this period, to attend also the practice of the celebrated Dr. Bateman at the Carey Street Disj^ensary. There, in 1813, he first met the late still more celebrated Dr. Richard Bright, and contracted with him a life-long friendship. The winter of the end of that year and the beginning of 1814 was a very remarkable one. The Thames Avas frozen over, and a fair was held uj^on the ice. The amount of misery, destitution, and disease pro- duced by this long inclemency of weather was enormous; the duties of the Disj^ensary physicians IN MEMORIAM. XlX increased beyond their strength, and were in part delegated to tlieso two young students ; who thus first became actual practisers of their future calling, in the highest and lowest garrets and cellars of St. Giles's. Among Dr. Latham's fellow-students and com- 2)anions at St. Bartholomew's were Haviland, after- wards Regius Professor of Physic at Cambridge ; Monro from Oxford; William Lawrence, already Demonstrator of Anatomy, Henry Earle, and Edward Stanley, all three surgeons to the hospital in the future; Hodgson, subsequently famous as ''of Birmingham ; " and James "of Exeter." He found the stimulating plan in vogue, by bark and wine, and the mortality great. A controversy was raging there about the A'alue and propriety of blood-letting in fevers. Upon his election, at the age of twenty-six, to be j)hysician to the Middlesex, he resolved to shut \ip his books, and to try and judge for himself. He was soon led to use bleeding, not from any doctrine then prevalent, but from his own observation. His work, in his new and responsible position, was carried on with uncommon diligence and energy. Living, as yet unmarried, in Gower Street, and dining usually with his father in Harley Street, it was his custom on his way home at night to turn in at the Middlesex to see some of his patients, especially his fever patients ; and he generally did something for them, — gave, j^erhaps, a few droits of laudanum to one, had the shirt taken off and the body sponged of another, or the feet only sponged with warm water. The result of this kind of special, minute, and unremitting care was a notably smaller XX IN MEMOKIAM. amouut of mortality among his fever cases than among those of another of the physicians. Towards tlie close of his incumbency at the Middle- sex Hospital— from March, 1823, to May, 1824— Dr. Latham was employed, in conjunction with Dr. Rogct, in investigating the nature and source of an obscure epidemic disorder then prevailing in the General Penitentiary at Millbank. In 1825 he j)ublished an account of this inquiry — his first professional writing. The book is pregnant with evidence of acute and patient research, and of clear cogent reasoning. One absolute fact which it records is well worth remem- brance in the present sceptical mood of some among us as to the value and the virtue of drugs. The disease, whatever may have been its real nature and origin, was at length, after defying almost every other conceivable method of rational treatment, at once arrested in every instance in which mercury was given, and pushed to the extent of jDroducing its well-known specific effect upon the gums. For four years, dating from the autumn of 1816, Dr. Latham delivered annually, in association with his colleague Dr. Southey, two courses of lectures on the Practice of Physic. The manuscript of these lectures is still in existence. Tied up with it are the following notices written by his own hand : — " In looking over these voluminous papers after the lapse of forty-nine years (viz. in my seventy-sixth year), I am amazed at the pains, and care, and time I must have bestowed in putting them together. I would have committed them to the flames — but I shrank from a deed which was painful. So I again locked them up. — .Tune 1, 1865. P. M. Latham." IN MEMOKIAM. Xxi And again, later — " NoAv, iu my eighty-fifth year, I encounter again my century of Medical Lectures, with their scrap of paper tied round. I was again tender towards my own offspring, and again shut them up and locked the box.— Nov. 28, 1873. P. M. Latham." Dr. Latham's first project, in the publishing way, after the commencement of his work at St. Bartholo- mew's, proved abortive. For ten years he had been collecting and arranging materials for, and was about to put forth, a book on Continued Fever. His clinical clerks had been chosen with care, his case-books had, by them, been regularly and accurately kept, and their contents analysed and digested by himself. It ap- 2)eared that he had bled from the arm one in every four of his fever patients, and leeched nearly all of them, with a mortality of seven in the hundred. All that died of the fever were found to have ulcerated bowels. Then, suddenly — it was just after the first invasion of the cholera — a startling change took place. He no longer dared to bleed any of his fever patients ; on the contrary, he was obliged to uphold them. Their skins were mottled with an eruption, and often spotted with petechise. So numerous became the deaths, that time could not be found for examining many of the dead bodies. I think he told me that the mortality was doubled. We know now the solution of this perplexing change. The fever which he had been so long watch- ing was typhoid, or enteric fever ; the new cases be- longed to a severe epidemic of typhus. At that time the distinction between these specifically difi'erent xxii IN MEMORIAM. forms of continued fever had not been recognised. His intended book never saw tlie light. When he had been eleven years i^hysician to St. Bartholomew's, he began to give those admirable '' Lectm-es on subjects connected with Clinical Medi- cine," of which the first were published in a single small volume in 1836, and which marked an era in the clinical teaching of this country. Among their incidental good effects was that of commending to our acceptance and study the even then novel theory and practice of auscultation, by substituting for the techni- cal terminology of Laennec, words and phrases more simple and familiar to the English ear. The conscien- tious discharge of all his hospital obligations was very remarkable. These lectures were given at an early hour, for a special reason, which may best be stated in his own words : — "I have desired," lie says, "to meet the students before their minds were pre-occupied with other things ; that among the inter- fering demands of other objects which arise in the course of the day, they should not have to catch a moment for that which I con- sider is the greatest of all — to steal a brief interval between lecture and lecture, and give it to that to Avhich all lectures, and all the knowledge conveyed in all lectures, is but subsidiary and subordi- nate. I would not thank them for such an irksome, wearied atten- tion ; I want them when their minds are fresh ; and, therefore, I have always given myself to them when mine is fresh." As he always gave these lectures, so also Dr. Latham visited his patients — in the early morning. One result of this was, that very few of the students, rarely more than ten, went round the wards with him; but these '' few" were also ''fit; " they were always the most studious men of their time, and among IN MEMOKIAM. xxiii them were many of tlio most (listinguishcd of liis .successors. The spirit in which ho fidfilled his functions as a teacher may also be ])cst shown by some furtlicr quotation from this little volume. After statinj^ that the disordered human body must be the study and the continual care of his hearers, he goes on : — " And is it possible to feel an iaterest in all this ? Ay, indeed it is ; a greater, far greater interest than ever painter or sculptor took in the .form and beauties of its health. "Whence comes this interest? At first, perhaps, it seldom comes naturally : a mere sense of duty must engender it ; and still, for a while, a mere sense of duty must keep it alive. Presently the quick, curious, restless spirit of science enlivens it ; and then it becomes an excitement and a pleasure, and then the deliberate choice of the mind. " When the interest of attending the sick has reached this point, there arises from it, or has already arisen, a ready discernment of diseases, with a skill in the use of remedies. And the skill may exalt the interest, and the interest may improve the skill, until, in process of time, experience forms the consummate practitioner. " But does the interest of attending the sick necessarily stop here ? The question may seem strange. If it has led to the readiest discernment and the highest skill, and formed the consummate practitioner, why need it go further ? " But what if humanity shall warm it ? Then this interest, this excitement, this intellectual pleasure, is exalted into a principle, and invested with a moral motive, and passes into the heart. What if it be carried still further ? What if religion should animate it ? Why, then, happy indeed is that man whose mind, whose moral nature, and whose spiritual being, are all harmoniously engaged in the daily business of his life ; with whom the same act has become his own happiness, a dispensation of mercy to his fellow-creatures and a worship of God." That this happiness was the portion of the lecturer himself, we may hold the perfect assurance. Of the method of his clinical teachins: I must still XXIV IN MEMOKIAM. make himself tlie eloquent expositor. He lielj)S the class to learn for themselves : — "It is your present duty to exercise your observation carefully and unremittingly ; and it is my present duty to point out tlie fittest objects, and place them in the light in which they can be most profitably seen. " If ever the desire to view the beauties and sublimities of nature has led you to ascend some lofty eminence, you have probably taken with you one more familiar with the scene than yourselves, as a guide ; but you have still trusted to your own eyes, and your own feelings, to fill you with the delight of the prospect, and tell you what to admire and Avonder at ; and you have required no more from the guide than to point with his finger, and say, ' See here, and see there.' " So, in entering this place, even this vast hospital, where there is many a significant, many a wonderful thing, you shall take me along with you, and I will be your guide. But it is by your own eyes, and your own minds, and (may I add) by your own hearts, that you must observe, and learn, and profit : I can only point to the objects, and have little more to say than ' See here, and see there.' " Under the same title as before, he published in 1845 two more volumes, full of exact observation and valuable precepts, upon diseases of the heart. He had resigned his office of j)hysician to St. Bartholomew's^ after seventeen years' tenure, in 1841. In the preface to these lectures he writes : — " I would have published other lectures, . . . but an enlarged sphere of duty at the hospital and elsewhere engrossed all my time, and impaired my health, and spoiled my good intention. "The duty of physician to a great hospital, unless it can be made easy by indifference to its highest obligations, is incompatible with much care of personal health. Therefore, I relinquished my office at St. Bartholomew's, and with it some of the best hopes I had of being useful in my generation." It is greatly to be regretted that both series of tliese very excellent and instructive lectures are, and have long been, out of print. ' IN MEMORIAM. XXV At this period he stood in the foremost rank of London physicians. I do not recollect when his cruel malady lirst began seriously to hamper his practice. For some time, however, before his resignation of the hospital, a visit to the wards was almost sure to provoke its access. Meanwhile he had never altogether laid aside his pen. There are scattered — I might say buried — in some of our medical newspapers, contribu- tions from him well worthy of perusal and study. I would refer to one paper in particular, on medical education, in the first volume of the British Medical Journal for 1864, because it contains an admirable exhibition of the doctrine, always strenuously main- tained by him, that we attempt to teach oui- students too much science, to the displacement of practical knowledge. " The practice of physic," I have heard him say, "is jostled by quacks on the one side, and by science on the other." He was a slow, self-critical composer, fastidious in settling his diction, and careful above all things that it should clearly convey his meaning. With what success that object was attained, they who may chance to read this memoir have had some oppor- tunities of judging. When Dr. Latham quitted St. Bartholomew's, he presented to the Library of the Hospital between fifty and sixty volumes of his completed case-books; rich, no doubt, with the fruit of his thoughtful and well- trained observation. Some years afterwards he ex- pressed his disappointment that they had not been turned to any account. It was explained to him by xxvi IN MEMORIAM. his friend and successor, Sir George Burrows, that the more correct classification which had been made of continued fevers, and the remarkable change which had come over the professional mind in respect of the proper treatment of acute disease, and especially in respect of the abstraction of blood, had made it very difficult to bring his clinical records with advantage before the public. Probably, besides these reasons, there was also the want of an adequate and leisure- gifted vates sacer. It cannot be doubted that those volumes contain a mine of precious material, which would amply repay the search of any one who, having the requisite talent, might have the privilege of ex- ploring it. In the parallel which was drawn in a former part of this memoir between the resj)ective careers of the two Lathams, there was one notable breach. The father was for several successive years President of the College of Physicians ; that place of honour the son never held. But this, as I believe, was owing to a voluntary abstinence on his part. So long as the President was appointed from among themselves by that irresponsible and self-elected body of eight Fel- lows, called '' The Elects," the burdens of the Presi- dency might well be deemed by a toiling physician to outweigh even its admitted dignity and advantages. At any rate. Dr. Peter Mere declined to become an Elect when chosen for that post in 1845, dreading, as I know, lest by accepting it he should encounter, as he almost certainly, sooner or later, would have had to encounter, the cares and distractions, with the IN MEMOKIAM. XXV ii tlicn soiiicwliat dubious honour, of tlic Presidential cliair. "Settled by strong conviction in liis Christian faith, Dr. Latham lived a life of unostentatious but habitual piety." He was withal a charming companion, full of various information, affluent in anecdote, with a keen sense of fun and humour. With this was blended, as is not uncommon, a quick susce2)tibility of pathetic emotion. I have heard him read Miss Elliott's beau- tiful hymn, ' Thy will be done,' with a choking voice and tears in his eyes. His letters are treasures of good sense, of lively and ejjigrammatic comments on men and things, of shrewd and weighty reflections, wise advice, and affectionate greetings. I find myself writing in terms of unqualified praise; but I am not conscious of wilful exaggeration. If ho had faults — as doubtless he had — they refuse to live in my memory. I must paint him as he was to me. I have tried to let him portray himself. One of the sterling and most prominent features of his character was the same with that of which Sir James Paget, in the ninth volume of these Trans- actions, has drawn so touching a picture as exemplified in his nephews, the two Ormerods. His conduct throughout life was governed by an abiding and im- perative sense of duty; and as a corollary of this temper of mind must be reckoned his love and his habits of order and method. The letters received by liim and kept were all arranged in packets, and the substance of each was noted on the envelope. Even in his extreme feebleness at Torquay no book was xxviu IN MEMORIAM. ever suffered to be out of its place ; if no one was at hand, he would rise from his chair with great exertion and replace it. I am permitted by Miss Latham to quote some words of her most interesting letter to myself descriptive of his later condition : " Every winter after his retirement to Torquay he suffered more or less from asthma, but after the first four winters, and as his bodily strength diminished, the attacks became less severe. During summer, even up to 1874, he could drive out, walk a little in the garden, and sit under the trees. It was a constant delight to him to look upon the bay wdth the fishing-boats, the green fields with the sheep, the garden with the work going on in it. He saw few beyond his own family and his immediate friends. All that inter- ested them interested him, and he watched the progress of his friends and medical pupils with pleasure and pride. His books were his chief companions. Wherever he was, in bed or in his sitting-room, his Greek Testament, with Gresswell's Harmony and Bengel's Commentary, were by his side, and were read and studied over and over again. The Gospel of St. John was the Gospel that he especially loved. He knew many chapters by heart in Greek, and would repeat them to himself at night, or before he w^ent to sleep. He did not speak much of holy things, but from words he would let drop one could gather how far he entered into their depth and truth. Arnold's sermons, Eeble's, and with others, latterly those of Baldwin Brown, he never tired of having read to him. Any biography of the men he had known, or any account of the times in which he or his father had lived, interested him. And he would often turn to the classics. Shakespeare and Milton w^ere his favourite English poets. He had the articles of the Times read to him daily, but his singularly pure, unprejudiced, clear mind shrank from controversy. At last his reading was almost entirely on sacred subjects. He shared all the little pleasures of those about him, and was ready and anxious to heljj in any good work. " By nature extremely sensitive, his patience and resignation were very beautiful to witness. In his most acute attacks of asthma no murmur ever escaped him, only touching aj^peals for strength to bear what it pleased God to lay upon him. He often expressed great thankfulness for all the blessings vouchsafed him, frequently saying ' How happy I am.' IN MEMORIAM. xxix " His old age loas very happy and peaceful, a waiting for the life to come. " During tlie last few years he became gradually weaker, and the attack of asthma that came on after Christmas, 1871, he never thoroughly shook off. In April he rallied a little, but soon failed again, and became almost helpless. When he was too weak to listen to reading for more than a few minutes at a time, he was not happy without those few minutes' reading from the Bible and the favourite sermons. He talked to his children as well as breathlcss- ness would permit, never losing his interest in every thing that concerned them. Every night and morning they gathered round his bed, and he had read some collects from the ' Visitation of the Sick,' with the ' Grloria in excelsis.' At the end of the second collect he always repeated aloud, with uplifted hands, the words 'Life everlasting.' All these last months was a struggle with weakness and difficulty of breathing. He bore it all with quiet- ness, patience, and courage. On the 20th of July he became rather suddenly faint, and in less than half an hour passed gently away, no one being able to tell when he ceased to breathe. He retained his consciousness to the very last, as he had always prayed he might be permitted to do." If I were called upon to sum up his character in the fewest words, I could use none more fitting than those with which he (anonymously) has commemo- rated his beloved brother John. He was an " example of that peculiarly English character, the unobtrusive but accomplished and high-minded Christian gen- tleman." He had outlived nearly all his contemporaries. Two yet remain who, next to the persons of his imme- diate family and beyond all others, were those between whom and himself the ties of ancient friendship and mutual affection were, I have reason to know, the strongest. Sir John Coleridge is one of these. Both XXX IN MEMOEIAM. of US, indeed, are now stranded — if of liim I may presume to say so — upon the fast-narrowing sands of time. Ripe in years as he was, and ready in sjoirit for the solemn change, his death must long be the subject of tender and sacred regret among the nearest and dearest of his surviving family and friends; nor will his memory soon cease to be reverently cherished tlu'OU2"hout a much wider circle. o " ]Multis ille bonis flebilis occidit, Nulli flebilior quam niihi."' LECTURES ox SUBJECTS CONNECTED WITH CLINICAL MEDICINE, COMPEISINC DISEASES OF THE HEART. AUTHOR'S PREFACE. Some years ago, I published a small volume containing lectures whicli I had given at St, Bartholomew's Hospital, with the view of assisting the studies of those who seek the knowledge of disease at the bedside of the patient. I believe they were found useful ; and in that persuasion I Avould have published other lectures with the same object. But an enlarged sphere of duty at the hospital and elsewhere engrossed all my time, and impaired my health, and spoiled my good intention. The duty of physician to a great hospital, unless it can be made easy by indifference to its highest obligations, is incom- patible with much care of personal health. Therefore I relin- quished my office at St. Bartholomew 's, and with it, some of the best hopes I had of being useful in my generation. But returning health brought back the recollection of in- terrupted purposes, and the desire of renewing them, and led me to think again of what I had written or remembered of past experience, if, perhaps, I might yet glean from it a little which would be profitable to others. Of the lectures now published, some are literally, and some are only in substance, those which were given at St. Bartholo- mew's ; and others have been added to them. Their subject is, diseases of the heart. For after all that has been written upon it, something, I have thought, is still wanting to bring it within the easy reach of the medical student ; and this I have endeavoured to supply. The treatise of Dr. Hope is very comprehensive. It em- braces all that concerns the heart, its physiology, its pathology, and the treatment of its diseases. But the very abundance of its matter has made it a hard book to the student, and its style, which is too often controversial, and even disputatious, repels many readers, and has been in some measure a hindrance to its usefulness. Yet it is a great work, and must always hold a c xxxiv authoe's preface. higli place in the medical literature of this country. Such information as I have to impart, has no aim of superseding either this or any other valuable work upon the same subject, but will rather (I trust) render the student more desirous of consulting it, and more aj)t to consult it profitably. Mine is a limited purpose. It is to regard the diseases of the heart only in one point of view, i.e. as they appear in the living man. But this one point of view includes the several objects of their clinical diagnosis, and their clinical history, and their medical treatment. These are what I seek especially to illustrate, while I presume an acquaintance with other parts of the subject, and shall only allude to them incidentally as I go along. The other parts of the subject, indeed, include no less than all that belongs to the morbid anatomy of the heart, the pro- ductions and processes which variously alter, or injure, or destroy its organic structure. These are the very things of which clinical observation seeks to know the living signs and the living history and the treatment, both curative and palliative. But these, it is no part of clinical instruction formally to explain ; yet, unless there be some previous knowledge of them, clinical experience cannot safely proceed : and, unless that knowledge be kept up and improved concurrently with it, clinical experience can never go on to perfection. The clinical diagnosis of diseases of the heart owes all the higher degrees of certainty to which it has been carried in our own times, entirely to auscultatory signs. According!}- it became necessary for me to give some account of their theory and their uses, and I have desired to do it as simply as possible. Their perfect theory, however, lies deeper than our present knowledge, and all the uses of which they are capable must wait to be developed by more and more multiplied observations of the sick. But already there is some true light in which these signs may be regarded ; and already there is a large extent to which they may be followed and trusted as the faithful exponents of diseases of the heart. And although on this subject doubtless there has been error and mistake, and a good deal has been taken for more certain and something for less certain, than it really is, so that we have both to learn and to unlearn ; yet author's preface. XXXV enough is already known to make the diagnosis of diseases of the heart hardly any thing else than a just appreciation of their auscultatory signs. After I have described the auscultatory signs, and endea- voured to show what they are, both in themselves and in relation to other symptoms, and what is their value as guides both to diagnosis and treatment, I may perhaps seem unreason- ably to cut short the further description of the heart's diseases. But as I lectured, so now I write, for one class of students especially. As ray hearers were, so now I presume my readers will be, chiefly those who are seeking information at the bedside. To such there is no greater impediment of knowledge than over-teaching. The teaching which they most require is suggestive. They have the realities themselves to learn from, the original hook to read, upon which all sound instruction is but a commentary. Therefore the commentator should only interpose when and where he is needed, and not after the manner of certain critics, who most help us with their annota- tions where the sense of the author is clear beyond dispute. A country pastor made one of his flock a present of Bunyan's " Pilgrim's Progress ; " and, anxious that he should both read it and profit by it, took care that the copy which he gave him should be one well furnished with notes. Meeting the man some time afterwards, he asked him how he liked the book, and whether he was sure that he understood it ; and received for answer, that he both liked it and understood it all well enough, except the explanations. So with students who have free access to the wards of a great hospital, we should not be too ready in describing and commenting upon the ordinary phenomena of diseases which are constantly before their eyes, lest, perchance, they should tell us " that they understand all well enough, except the explanations." But there is a clinical history of diseases of the heart, as well as a clinical diagnosis. By their clinical history, I mean the notice of those conditions, which, whether preceding, accompanying, or following, may be deemed to hold with them some pathological kindred. Every part, however, of such clinical history is not made out with equal clearness. That which is constructed out of xxxvi author's preface. subsequent events, is the most full and complete. Observation has traced back, with fearful fidelitj^, a long line of formidable and fatal diseases to tbeir pathological parentage in the heart. But that which is constructed of preceding or coincident events, is hitherto less perfect ; yet observation has been able to assign to some diseases of the heart a sure origin in, and a still continued alliance with, diseases of other organs, or of the constitution at large. Now it is this last part of their clinical history which is most available to practical purposes : how greatly available, may be shown from the single instance of the ascertained con- nection of endocarditis and pericarditis with acute rheumatism. These most formidable affections of the heart have been brought within our earlier knowledge and our earlier treatment, and so within the greater probability of cure, by our being fully aware when most to expect them, and then being upon the watch for them. And all this has come from the study of their clinical history, which has stamped their pathological kindred with acute rheumatism. But there are diseases of the heart which have a clear clinical diagnosis, but no clear clinical history, except of events which follow them ; and these are the least amenable to medical treatment. The same signs which notify their existence, declare their incurability. "What a gain will it be to mankind, should observation hereafter discover that the conversion of the valves of the heart, and the lining of arteries, into earthy matter or cartilage, has its sure pathological origin in certain forms of disease in other parts, or in the constitution at large, which are both obvious and curable, or in certain habits and modes of living which can be rectified or avoided ! The study of our times has been chiefly to specialise and to localise disease, and it has had very useful results. But it has had a tendency to narrow our views, and to cripple our practice by setting up as many several pathologies within the body as there are several organs. Yet no sooner do the diseases of separate parts come to be treated, than they begin to claim their place in a common pathology. We cannot reach them, and apply our remedies directly to them, in the isolated spots wherein we find them; but if they are to be reached, and treated at all, it must be through the vascular system, or author's preface. xxxvii through the nervous system, or through the digestive and assimilative system. For these are the common agents of life and increase, both healthy and unhealthy, and the common channels both of food and of medicine. Upon the treatment of diseases of the heart, and all that immediately concerns it, these lectures may have the appearance of being unnecessarily prolix. But be it remembered, that they were originally addressed to students, from whom I could not withhold any piece of practical information which they ought to possess, and, when I could not refer them for it to other sources, I was obliged to furnish it myself. And still I con- sider myself addressing chiefly students, or those who are daily engaged in the obligations and responsibilities of their profes- sion, and who desire to be faithful to them, and so cherish an habitual preference for that knowledge which is useful. All things should have a consideration bestowed upon them in proportion to their importance : the question is, whether the treatment of diseases has, upon the whole, had as much as is due to it. During the last quarter of a century, physicians have laboured very hard, and, upon the whole, very profitably. But their labour has been bestowed in unequal degrees, and conse- quently with unequal success, upon the objects which concern them. Pathology and diagnosis have had much more of their regard than treatment. Thus our knowledge of disease in its essence has been greatly enlarged, and our skill of detecting its present existence and seat in the living body, has been made more exact and sure, while our ability of influencing its progress and events by medicine has not been proportionally increased. But how has this happened ? Is it that the mind, which is best fitted for the study of pure pathology, is naturally averse from concerning itself with practice ? One would hope not ; but yet it may be so. The things themselves are diflerent, and may naturally enough please diflerent minds. Disease is a thing of itself, and admits of being studied with little reference to other things ; and this may suit one mind. The afiair of treating it must necessarily sufier admixture with various accidents and circumstances of life, and cannot be conducted •without constant reference to them ; and this may suit another xxxviii author's PREFACE. mind. But however this may be, the fact is certain, that to many eminent physicians, of foreign schools especially, to whom speculatively we owe the most, practically we owe the least. Their lessons of pathology and diagnosis are copious, original, and instructive ; their lessons of treatment are brief, barren, and unprofitable. Yet it concerns physicians, above all men, that theirs should not be a barren knowledge, but that it should claim honour of mankind from a sense of the benefit which they receive from it. Far be it from me to contend, that every piece of pathological knowledge is to be disparaged or rejected, which cannot at once be made subservient to a practical pur- pose. The knowledge is to be obtained at all events, and kept ready for use, whether the use come soon, or late, or never. Use, however, is the end always to be regarded, as well philo- sophically as morally. An age of great increase of speculative knowledge in medicine ought, surely, to be an age distinguished by some great practical benefit. It is much to be lamented that any eminent master of pathology, who, while he is concerned with the nature of disease, has seemed at home, and in earnest, and satisfied with his work, pleased to instruct, and gaining favour for his instruction as he goes along, should come at last to the treat- ment of disease as to a humbler and less worthy portion of the physician's care. For this ought not to be. Medicine, as it begins to touch upon higher interests, even the interests of life and death, should feel itself in alliance with higher motives than any which can be thought to help and quicken its pursuit as mere science. For now it claims a sort of moral respect in the handling ; it calls upon the conscience as well as the intel- lect, for more caution to avoid error, and more fearfulness of overstepping the truth. The treatment of diseases, rightly considered, is, in fact, a part of their pathology. What they need, and what they can bear, the kind and strength of the remedy, and the changes which follow its application, are among the surest tests of their nature and tendency. CONTENTS. LECTURE I. The Natural Sounds, and Impulses and Resonances of the Heart.-^How their variations of Degree and Extent become Evidences of the Heart's Disease or Unsoundness - - - - - - 1 LECTURE II. Sounds of the Heart different in kind from its natural and healthy Sounds — to be called Murmurs. — Murmurs are either Endocardial or Exocardial —The general Characters of each. — The Endocardial considered as the Signs of a diseased Endocardium. — Conditions to be taken into account in relation to them as such. — What Conditions have erroneously, and Av hat have justly, been thought essential to their Meaning, as Signs dia- gnostic of Valvular Disease - - - - - - 15 LECTURE III. Endocardial Murmurs continued. — Their Origm from Valvular Disease .sometimes doubtful. — May proceed from other Forms of mechanical Im- pediment.— Deformed Chest. — External Pressure. — Endocardial Murmurs sometimes confounded with the Murmur of Respiration. — A jjeculiar ^lurmur, akin to the Endocardial, a frequent concomitant of Pulmonary Consumption. — Endocardial, arterial, and venous Murmurs, proceeding from impoverished Blood. — Exocardial Murmurs. — Their Seat the Peri- cardium.— Their only known Cause the Friction of its Surfaces in a State of Disease - - - - - - - -33 xl CONTENTS. LECTURE IV. General Estimate of the uses of Auscultation applied to the Heart - 47 LECTURE Y. Inflammation of the Heart. — Endocarditis and Pericarditis. — The Endocar- dial and Exocardial Murmiu's their chief diagnostic Signs. — How tliey become such. — The Endocardial Murmur, though found in numerous other Diseases of the Heart, yet conditionally the sure Sign of Endocar- ditis.— The clinical Knowledge of Endocarditis a new Knowledge. — Its connection with Acute Eheumatism. — How it came to be distinguished, during life, from Pericarditis - - - - - 57 LECTURE VL Endocarditis continued. — Its general Descrijation less useful than a clinical Commentary iipon its Individual Symptoms. — The Endocardial Mur- mur, in Endocarditis, is sometimes preceded by a certain Roughness or Prolongation of the Heart's natural Sounds. — Often it arises abruptly. — Seat and Directions of the ^Murmur. — Its Accompaniments, Pain, Abnor- mal Impulses, and Actions of the Heart. — Their Practical Value, as Symptoms, according to their Degree, and according to the diU'erent Re- lation which the Endocardial Murmur bears to them in different Cases. — Their Diversities of Relation contain Intimations respecting the Stages and Progress of the Disease. — The same confinned bj'' the Success and Failure of Remedies. — Their practical Importance - - 64 LECTURE VIL Pericarditis. — The Exocardial ^Murmur its pre-eminent Sign. — An imperfect JIurmur sometimes precedes the true. — In Pericarditis, as in Pleurisy, another Auscultatory Sign beside the Murmur, Dulness to Percussion. — Their relation to each other not exactly the same in the two Diseases. — In Pericarditis other Signs immediately referable to the Heart, besides the Auscultatory : Vibrations sensible to the Touch, Undulations to the Eye. — Other Symptoms of Pericarditis. — Their relation to its Ausculta- tory Signs. — From these other Symptoms, and chiefly from its huown Connection with Acute Rheumatism, Pericarditis often rightly presumed to exist, and often successfully treated ; yet often overlooked, and often treated too late, and often fatal, for want of the Auscultatory Signs - 74 CONTENTS. xli LECTURE VIII. Tlic frefiiioncy of [Eiulocanlitis uml Pericarditis, occuvrini,' separately or together, as the Accoiiipaniiuents of Acute Rheiiinatisni. — Present llesults of Eiiilocarditis occurring alone. — Of Pericarditis occurring alone, — Of botli occurring togetlier. — Ditticulty of gaining Knowledge of their ulti- mate llesults when the Cure is imperfect - - - 86 LECTUEE IX. Inflammation of the Lungs accompanying Acute Rheumatism, either alone or in combination with Endocarditis, or with Pericarditis, or with both. Page 96 LECTURE X. The Treatment of Acute Rheumatism considered, preparatory to the Treat- ment of its Accompaniments, Endocarditis and Pericarditis.— Acute Rheu- niatism successfully treated upon different and even opposite Indica- tions, and by difterent and even opposite Remedies. — How this may be A\ithout Disparagement of Medicine as a Science. — The Treatment of almost all curable Diseases narrowed to the choice of a few Indications and a few Remedies. — What the lowest and what the highest Office of the Physician. — ^The highest engaged in the Treatment of Acute Rheumatism and its Incidents. — The Groundwork of Rational Practice is to under- stand the value of single Indications, and the power of single Remedies. — Treatment of Acute Rheumatism upon indications belonging solely to the Vascular System, and solely by Bleeding. — Upon Indications belong- ing solely to the Nervous System, and solely by Opium. — Uj^on Indications belonging solely to Abdominal Viscera, and solely by Calomel and Purgatives - - - - - - -109 LECTURE XL Treatment of Acute Rheumatism continued. — Its Treatment according to mixed Indications, and by mixed Remedies. — The Blood-vessels, the Nerves, and the Abdominal Viscera, brought simultaneously under the remedial Impressions of Bleeding, and Opium, and Purgatives. — Advan- tages of this Treatment. — Observations on the Use of Colchicum. — Representations of Medical Treatment often fallacious from being too favourable. — Commonly drawn from good Cases only ; not from all Cases, good and bad. — The good Cases of Acute Rheumatism, or those favourable for Medical Treatment. — The bad Cases, or those unfavourable for Medical Treatment. — Notice of Cases in which Treatment succeeds or fails, contrary to expectation. — Notice of Medicines, whose Ojieration in this Disease is unquestionably Remedial, yet not understood - 127 xlii CONTENTS. LECTURE XII. Preventive Treatment of Rhenmatic Endocarditis and Pericarditis con- sidered.— In the Management of Acnte Rheumatism, can any Remedy be iised as specially preventive of, or any Remedy be avoided as specially conducive to, Endocarditis and Pericarditis? — Is Opium preventive? — Is Venaesection conducive? — In what their preventive Treatment really consists. — Their actual Treatment. — It should begin with the Earliest Notices of their Existence. — What these are in their several Varieties. — Why, in Acute Rheumatism, the Heart, being inflamed, needs a special Treatment, while the Joints, being inflamed, need it not. — The Treat- ment of the Heart, however, by the same Remedies as the general Dis- ease.— But this Treatment made special by those Remedies being used with a different Force, and in new Directions. — Bleeding and Opium used thus. — The Consideration of the Uses of Mercury postponed - 140 LECTURE XIII. The general Question considered of Mercury being a Remedy for Inflam- mation.— Condition favouring its remedial Operation. — These found in the Nature of the Inflammation, in the Part it occupies, and in the Con- stitution of the Patient. — Its remedial Operation either antiphlogistic or reparatory. — The first chiefly displayed in the Inflammations of Tropical Climates. — Parallel Forms of Inflammation hardly known in this country. — "Wliat come nearest to them.— The Eflect of Mercury in these not alone, but conjointly with Bleeding. — The probable Nature of its antiphlogistic Operations infen-ed from its Effects, especially in two Kinds of Inflammation. — Its reparatory Operation shown by Instances. Page 157 LECTURE XIV. Subject continued. — Antiphlogistic and reparatorj' Power of Mercury over Acute Inflammation further illustrated by its Effects in Iritis, over Chronic Inflammation by its Effects in Rheumatic Ophthalmia. — Its Effects upon internal Chronic inflammation. — Our assurance of the Seat is generally greater than it is of the Essence of internal Chronic Diseases. — Our Conclusions, therefore, less confident respecting the Effects of Medicine upon them. — Experience of the curative Effects of JNIercurj' in many hidden Diseases, which from Circumstances are deemed Inflamma- tory.— Notice of a Principle to be regarded in the Mode of Administering it 167 CONTENTS. xliii LECTURE XV. Use of Mercury in the Treatment of Rheumatic Endocarditis and Pericar- ditis.— Every great Advance of Clinical and Pathological Knowledge requires that old Remedies should undergo the Trial of new Experi- ments.— In Endocarditis the remedial Power of Mercury shown, not so much by the Result of single Cases, as by the comparative Results of many which have, and of many which have not, been treated Ijy it. — In Pericarditis its Remedial Power may be appreciated in Individual Cases. — The Relation which the Cessation of the Exocardial Murmur bears to the Cessation of the Disease. — The power of Mercury to procure the Cessation of the Murmur, early or late, according to Circumstances. — Early Salivation most strikingly curative. — Late Salivation not without Benefit.— Comparison of some general Results - - - 178 LECTURE XYI. Of Endocarditis, independent of Rheumatism. — The Clinical Knowledge of Endocarditis altogether a new Knowledge. — The Way in which it was obtained suggests the Way in which it may possibly be enlarged. — Case of Acute Endocarditis ingrafted upon Chronic Valvular Disease. — Cases of Acute Endocarditis combined with Pericarditis in a previously sound Heart. — Case of suspected Endocarditis under a more chronic Form. — General Remarks ------- 194 LECTURE XVII. Pericarditis independent of Rheumatism. — Shown by Morbid Anatomy to be of common occurrence. — Its smaller Degrees the most frequent. — Probably harmless. — Generally beyond the reach of clinical Diagnosis. — Its greater Degrees not beyond its reach, but apt to elude it. — Why. — Covert Acute Pericarditis and covert Acute Pleurisy compared. — Review of Cases, with the purpose of finding what natural alliance Pericarditis may have with other general pathological Conditions besides Rheu- matism --.-.-. 208 LECTURE XVIIL Immediate results of Endocarditis and Pericarditis. — Reparation of the In- jury done to the Heart. — Perfect and imperfect. — Though imperfect, it may save Life. — Causes which hinder or 23ostpone Reparation : 1. The Amount of Injury to the Heart itself; 2. The Amount of concomitant Injury to other Organs ; 3. Original AVeakness, or Pravity of Constitu- tion.— Allusion to certain Affections of the Brain and Spinal Marrow incident to the Period of Reparation - - - - 226 xliv CONTENTS. LECTURE XIX. Permanent Unsoundness of the Heart from the Injury done by Endocarditis and Pericarditis being imperfectly repaired. — Consequences. — Secondary Inflammations. — Their Clinical History. — Their Clinical Diagnosis. — Its extreme Diihculty and Uncertainty. — Severe and fatal Cases. — Com- mentary upon them at large ..... 239 LECTUEE XX. ^Secondary Inflammations continued. — Certainty of our Knowledge of severer and fatal cases. — Eeasonable Conjecture of many less severe and more manageable. — Inference from successful Treatment. — Does Inflam- mation, as often as it is renewed, add something to the permanent Injury of the Heart? — Reasons from Analogy why it sometimes does not. — Reasons from Observation why it often does. — Case of Inflammation many Tunes renewed in the course of Years, and ultimately Fatal. — Commentary upon it at large ..... 256 LECTURE XXL The unrepaired Efl'ects of Endocarditis and Pericarditis both constitute a permanent Unsoundness of the Heart in themselves, and become the pos- sible Elements of further Unsoundness beyond themselves. — The same may be said of the imrepaired Eftects of other Diseases.— This further Unsoundness a Thing difi'erent in Kind. — Natural Distinction between the Unsoundness from Disease and the Unsoundness from Disorganisa- tion.— Summary Account of the Unsoundness from Endocarditis ; com- pared (by Anticipation) with the Unsoundness from other Diseases of the Endocardium --..... 269 LECTURE XXII. Consequences to Life and Health from the permanent Unsoundness of the Heart remaining after Endocarditis. — 1. Cases in which beside the per- manent Endocardial Murmur there is no other Symptom referable to the Heart ; 2. Cases in which beside the Murmur there is occasional Palpi- tation ; 3. Cases in which beside the Murmur there is constant Palpita- tion .-..----. 276 LECTURE XXIII. Permanent Unsoundness from Pericarditis ; its many Degrees : some harm- less.— General view of the Effects of Pericarditis and of their Reparation. — How ultimately incomplete and ending in permanent Unsoundness of various Degrees. — Some of them specified and commented upon. — Cumulative Unsoundness from several Attacks of Pericarditis - 285 CONTENTS. xlv LECTURE XXIV. Permanent Unsoundness of the Endocardium and Pericardium from Diseases of a specific and malignant Nature, especially from analogous Formations. — Their anatomical Character. — Their Clinical History. — ■ Their Clinical Diagnosis. — Our Knowledge of them compared and con- trasted with our Knowledge of Inflammation - . . 298 LECTURE XXV. Diseases of the Heart's muscular Structure. — Acute Inflammation termi- nating in the Formation of Pus. — Cases. — Explanation of the natural Difficulties in the way of its Diagnosis _ . . . 307 LECTURE XXVI. Diseases of the Heart's muscular Structure continued. — Chronic Inflamma- tion terminating in Ulceration. — In partial Dilatation. — In possiljle Kupture. — Its Diagnosis unattained. — Cases. — The soft Heart. — The fat Heart. — Inquiry into their Clinical Diagnosis and Clinical History. — Rupture of the fat Heart. — Cases - - - - -315 LECTURE XXVII. Unsoundness of the Heart from Disorganisation. — Hypertrophy. — Atrophy. — Dilatation, — Contraction. — What they are in themselves, and in their Combinations. — Their Clinical Diagnosis. — How far attainable by Auscul- tation.— Their Clinical History contained in prior Diseases conducive to them. — These Diseases may be either in the Heart or in other Parts of the Body. — Observations upon their Clinical History, as contained in prior Diseases of the Heart . _ . . - 334 LECTURE XXVIIL Unsoundness of the Heart from Disorganisation sometimes traceable to an accidental Shock which it has sustained. — This Shock a Part of the Clinical History of its unsoundness . . . . 344 LECTURE XXIX. Clinical History of the Heart's Unsoundness from Disorganisation con- tinued. Causes Exterior to the Heart conducive to it. — Dilatation and Contraction of the Aorta. — Certain Diseases of the Lungs. — Curvature of the Spine and Deformity of the Chest. — General Disease of the Arteries. —Coincident Diseases of distant Parts.— Liver.— Spleen.— Kidneys 353 xlvi CONTENTS. LECTURE XXX. Treatment of Unsoundness of the Heart in some of its i^rincipal Forms.— Treatment of Valvular Unsoundness.— In valvular Unsoimdness tire Ex- pectation of Medicine is not to cure it, but to stop its Increase, or to postpone its Consequences.— The Nature of the Disease in which the valvular unsoundness originated limits or enlarges the Expectation.— Also the Age and Constitution of individual Patients.— Cases - 367 LECTURE XXXI. Treatment of Hypertrophy of the Heart.— Doubts whether it he reaUy curable.— Counterfeit Hypertrophy.— Supposed Cases of Ciu-e probably refer to it.— True Hypertrophy.— its treatment contemplates something short of Cure.— Blood-letting.— Limits of its Use.— Success and Failure of Treatment.— Causes of Failure in Cases apparently favourable - 377 LECTURE XXXII. Treatment of Atrophy of the Heart— of Softening— of Dilatation.— Measure of expected Benefit in each . - - - 386 LECTURE XXXIII. Effects of an unsound Heart upon the general vascular System, according to its different Forms of Unsoundness.— Effects upon the Veins.— Effects upon the Arteries - - - - - - - 394 LECTURE XXXIY. General View of the secondary Diseases which proceed from an unsound Heart, and of their Treatment. — Their vast pathological Kange. — Con- gestions.— Effusions. — Haemorrhages. — Inflammations. — Inquiry into the common Principle of tlieir Curability. — Curable in a higher and a lower Sense according to the Nature of their actuating Cause. — As the result of an unsound Heart curable only in a lower Sense. — Suspension. — Abatement. — Temporary Eemoval possible. — Conditions limiting and enlarging tlie Expectations of Medicine in different Cases. — Form of Un- soundness in the Heart itself.— Presence or absence of coincident Dis- ease in other Organs.— The natural Constitution of the Patient, whether healthy, or plethoric, or anaemic— The Patient's Condition in Life. — The Time at which Treatment is first instituted - - - . 408 CONTENTS. xlvli LECTURE XXXY. Particular View of the secondary Diseases which proceed from im unsound Heart, not limited to any certain Part of the Body. — Tlie Lungs their most fre({uent Seat. — The Lungs, therefore, the chief Scope of medical Treatment. — Their nature within the Lungs. — Their mode of Treatment and Measure of Curability greatly influenced by the Form of Unsound- ness within the Heart. — Secondary Diseases of the Brain — of the Liver. Page 421 LECTURE XXXVL The Nature of Dropsy when it proceeds from an unsound Heart. — The Purpose it serves.— Treatment. — Its Objects. — Its Success, when the Dropsy is small, under favourable Conditions. — Its Success, when the Dropsy is large, under favourable Conditions. — What these Conditions are in each Case respectively . . . . . 435 LECTURE XXXVII. Affections of the Heart, consisting in a certain Assemblage of Symptoms, not in express Forms of Disease. — General Remarks upon them. — Their pathological Character. — Their Treatment. — Angina Pectoris. — Its Patho- gnomonic Symptoms. — Its efficient Cause ; not annexed to any one Form of Unsoundness in the Heart, but probably produced by Spasm, which is incident to many. — Sudden Death without previous Illness. — Cases. — Probable Cause of Spasm of the Heart, or a first Attack of Angina P^jctoris -----... 445 LECTURE XXXVIIL Angina Pectoris continued. — Its Clinical History and Treatment. — Condi- tions to be noted in the Intervals of its Paroxysms. — Parallel between it and Epilepsy respecting their Treatment. — Management of the Paroxysm, — What Auscultation teaches. — What the various Circumstances of its Clinical History .-_.... 454 ERRATA. Page 121, line G,for "ammonia" read " ammonite." „ 124, „ 39, for " either ventesection" read " either in venresoction." „ 184, „ 15, /o;- "factor" mt(^"fcctor." „ 189, „ 7, /or "factor" mwi'Toctor." LECTURES ON SUBJECTS CONNECTED WITH CLINICAL MEDICINE THE HEART. LECTURE I. THE NATUKAl, SOUNDS, AND IMPULSES AND RESONANCES OF THE HEART. — HOW TPIEIR VARIATIONS OF DEGREE AND EXTENT BECOME EVIDENCES OF THE HEARt's DISEASE OR UNSOUNDNESS. Of the signs by which, we judge of the healthy and morbid conditions of the heart, those that are called physical and are immediately referable to the organ itself, convey the most cer- tain information. " A line drawn from the inferior margins of the third ribs across the sternum passes over the pulmonic valves a little to the left of the mesial line, and those of the aorta are behind them, but about half an inch lower down. A vertical line, coinciding with the left margin of the sternum, has about one third of the heart, consisting of the upper portion of the right ventricle, on the right, and two thirds, composed of the lower portion of the right ventricle and the whole of the left, on the left. The apex beats between the cartilages of the fif thandsixth left ribs at a point about two inches below the nipple, and an inch on its sternal side."* This is the pra)Cordial region, in which the basis and apex and lateral boundaries of the heart are denoted, and its entire outline is traced in relation to the walls of the chest. * Hope on Diseases of the Heart, p. 3. 1 2 CLINICAL MEDICINE. [lECT. I. Within this space we cannot see. But at this space we can listen, and feel, and knock, and so put it to question, whether all be riorht beneath. And there is no spot of it which does not in its turn make answer to the ear, to the touch, or to the tapping of the finger, and tell something of the organ that lies herein. Hence proceed sounds, some of health and some of disease, which of the two the ear must judge. Hence are conveyed impulses, some of health and some of disease, which of the two the toiicli must tell. All this may seem strange at first. But it will seem no longer strange, when we consider that inseparable from the functions of the heart is a certain motion or energy, and that it varies according to its conditions of health and of disease ; and that inseparable from this motion or energy are certain sounds and impulses, and that these vary as it varies. Hence these sounds and impulses have natural degrees and qualities, a natu- ral order of succession and a natural limit of extent, which the ear and the touch can appreciate and use as a measure of the heart's health. And hence these sounds and impulses admit of deviations from their natural degrees and qualities, and their natural order and extent, which the ear and the touch can, in like manner, appreciate and use as a measure of the heart's disease. Now it is evident that our enquiry must begin with the natural and healthy sounds and impulses of the heart. These are the standard of comparison, by which alone we can judge of the unnatural and morbid. First, then, of its sounds. And here, for the sake of avoiding confusion, let me just mark the distinction between the sounds which reach the ear simply by listening, and those which reach it by help of percussion. Though the ear judges of both, yet are they totally different in the modes of their production. The heart itself produces the former by its own vital movements. We produce the latter, and the ear is made perceptive of them only by our knocking. The heart contributes nothing but as an inert mass; and what it contributes as such is found equally in the dead and in the living. It is the sounds which the heart brings out of itself by its own vital movements, that I wish now to consider. The sounds, which we bring out of the heart by our percussion, I will consider hereafter : for they too carry with LECT. T.] THE SOUNDS OF THE IIEAUI'. 3 thoui notices of health anil ol" disease, which are iKMthcr few nor aminiportant. The sounds, -which naturally accompany the movements of the healthy heart, can only be learnt by the practice of listen- ing to them. It is useless to describe them. They are simple perceptions of sense, which no words can make plainer than they are, when the ear has once become familiar with them. It is the same with all common sounds. Jiy describing them you seek to make them known in a different way from that in which they are naturally known. Who ever thought of describing the sound of the wind or the rain except for pootical purposes ? I must leave you, then, to be your own self-instructors in the healthy sounds of the heart, and recommend you to be con- stantly practising auscultation for the purpose on healthy subjects. But, besides the fact, that sounds of a certain kind accompany the healthy actions of the heart, which each man must listen for and so learn for himself, there is the theory of the fact, or the explanation how these sounds arise. This surely cannot be learnt merely by listening. The fact that it rains or it blows, we may take upon ourselves to decide without the philosophers, because wo hear it. But, if we would know how it comes to do either one or the other, if we would understand the theory of winds and showers, we must enquire a little further, and betake ourselves for instruction to those who have examined into such matters. In listening at the pr;r(Cordial region, the ear at once per- ceives two sounds proceeding from the heart, — the one duller and more prolonged, the other clearer and shorter ; the one coinciding with the systole of the ventricles and the pulsation of the arteries, the other coinciding with the diastole of the ventricles and the rest of the arteries. Hence it appears that for one pulsation of the arteries there are two sounds of the heart. But between the two sounds of the heart there is hardly an ai^preciable interval. The duller sound, which goes for the first, seems to end with a snap, which goes for the second ; and then succeeds an interval of repose, which is appreciable enough before the duller sound returns. The time, thus occupied by the sounds of the heart in their succession and their pause, has been divided and accounted for 4 CLINICAL MEDICINE. [lECT. I. after this manner :— one-half is filled up by the first sound, one quarter by the second, and one quarter by the pause. Still, though there be hardly an appreciable interval between them, the ear acknowledges two sounds. And, that they are really two, will appear the more certain, when their efficient causes are found to be different. So much as is either known or plausibly conjectured about these causes I will now briefly state. About the efficient cause of the first normal and natural sound of the heart there is, I am afraid, a good deal still in debate. After many direct experiments still physiologists do not agree. Pathologists and physicians then may well be pardoned any doubts and difficulties they may have about sounds which are abnormal and unnatural. It is very plausibly conjectured that the efficient cause of the first sound is pretty equally shared between the muscular struc- ture of the ventricles and the auriculo-ventricular valves, and that both, by the conditions under which they are placed during the systole, directly contribute to it : the muscular structure, by its contraction, giving it length and dulness, and the valves, giving it a perceptible sharpness by their extension. But what of this perceptible sharpness ? Here is a new appeal to the ear. Does the ear acknowledge it ? Is it indeed a perceptible ingredient of the first sound under ordinary circum- stances ? For my own part I cannot tell. It is admitted, however, that, in the healthy heart, this sharp- ness of the first sound is muffled by its predominant dulness. But it is said that there it is notwithstanding, and that there are states of the heart which demonstrate both its reality and how it is- produced : that, in proportion as the muscular structure becomes- attenuated, the first sound loses more and more of its dulness- and length, and gains more and more of this sharjmess, which is then not merely manifest but predominant, and sometimes exists- alone ; and again, that in proportion as the muscular structure- becomes thickened, the first sound gains in dulness and length, and then that its sharpness is not only muffled, but absolutely absorbed and abolished. If all this be true, the first sound of the heart is a mixed sound, or rather two sounds so blended together in the healthy organ as to be nearly or altogether indistinguishable, and so to LECT. I.] THE SOUNDS OF THE HEART. 5 pass for one. Disease, however, is able to analyse them for ns, and, presenting tlicm separate to the car, makes now one and now the other predominant. But there is yet another condition which claims a part in causing the first sound of the heart. The muscular contraction of the ventricles already spoken of, as having its share in the efficient cause, is the same which the heart exercises in common with other muscles of the body. But there is said to be, besides, a muscular tensio)/, which is peculiar to the heart. This peculiar tension takes place "when the blood is poured in from the auricles, and the valves are closed, and the ventricles are filled, and their muscu- lar fibres braced up, and their entire muscular mass becomes for a moment as hard as cartilage. At this moment it is that the tension reaches its acme and gives a sound. And this sound of muscular tension mingles with the sound of the auricular valves, which are then upon the stretch, and the sounds of both mingle witli the sound of muscular contract ion which, immediately follows. If this be true, the first sound of the heart is a compound of three sounds, each having its own separate efficient cause. This is rather an intricate piece of physiology. Yet it con- tains (I am persuaded) some truth. But then it looks so like a riddle, and needs so much trouble to understand and explain, that one cannot take it and use it as a ready clue to explore diseases with. In the first sound of the heart, which is apparently one, there may be two or three efficient causes involved, operating simul- tnneoushj, and producing, in fact, two or three sinmltaneous sounds. Bearing this theory in mind I may find, perhaps, that it now and then helps me a little to explain certain auscultatory phenomena, which attend diseases of the heart. But for daily use I am content to let my ear dictate to my understanding, and to believe, that the first sound of the heart is one sound, and that one cause is engaged in jii'oducing it, viz. the muscular contraction of the ventricles. Here, at the threshold of our subject, I would make one general remark, which will find its application as we go along, viz. ihat it is not all physiology which can be made useful towards the knowledge and treatment of diseases, but only those 6 CLINICAL MEDICINE. [lECT. I. parts of physiology whicli are undeniably true, and not only true, but easily and at once seen to be so. A great deal of what is termed phj'siology has turned out to be a mistake ; and so far us it has got mixed up with our notions of disease (and this has happened to a deplorable extent), it has hindered the progress- of practical medicine. The efficient cause of the second sound of the heart admits of little doubt. Though it take place during the diastole of the heart, yet is it in no way produced by the alterations of form and consistence which the ventricles then undergo. Their re- lapse from a state of tension to a state of flaccidity has nothing to do with it ; hut the second sound of the heart results simply iVom the sudden closure of the sigmoid valves by the recoil of the blood, when it is thrown back upon them from the pidmonary artery and the aorta. So much concerning the normal and natural sounds of the heart. As to the sounds themselves, since the ear can only become familiar with them by practice, I leave you to be your own instructors. As to their theory, taking the matters of fact and matters of speculation which have been brought to bear upon it, I consider that it is in part satisfactorily made out, and in jDart. only plausibly surmised. In the received theory of the second sound I am content to acquiesce ; but I look to future experi- ments for something clearer and simpler before we can finally rest satisfied of our possessing a true theory of the first. Of the natural and healthy limit of the heart's sounds within the chest something must next be said. It is a jDrcliminary point which some have thought most important to be determined with precision. But no good ever comes from pretending to. more precision than the thing itself admits of ; and I am sur(^ this matter does not admit of much. The pnxicordial region, it has been said, defines it. But surely the second sound always exceeds that limit, and is audible also in the course of the aorta, and of the pulmonary artery and of the carotids. Indeed, nothing less could have been expected ; this sound having its- efficient cause in the mechanical closure of the valves whicli are placed at the entrance of the aorta and the pulmonary artery respectively. With respect to the first sound, I should be at a loss to mark the exact space within which healthy proportion and healthy LECT. I.] THE SOUNDS OF THE HEART. 7 structure always required it to be lu^ard, and in neither more nor less. There arc so many circumstances, some consistent with health in the largest sense, and some exclusive at least oi" its disease, which make the systolic sound of the heart more or less extensively audible, that (I am persuaded) two healthy persons would not easily be found in whom it would be heard exactly within the same thoracic space. Whether a man be fat or lean will always make a great difference. In the one it will be kept within the pra;cordial region, in the other it will be carried beyond it. Fat is so bad a conductor, that where it greatly abounds, it will restrict the sound to less than the entire priccordial region, even to a very small part of it ; so that you will not bo able to hear the heart further than you can feel its impulse, or further than its apex. But mere skin and bone are such good condvictors, that in very thin persons the sound will spread very far beyond the pr?ccordial region, and be heard at any part of the chest to which you apply your ear. I believe that in most persons of (what is called) a nervous temperament, even when they are under no conscious excite- ment, the heart's sounds are to be heard beyond the praecordial region, and, under actual emotion, very far beyond it. And I believe too that in persons of this temperament the heart's sounds are apt to be of a higher intonation. One condition, no doubt, is the result of the other. In proportion as the sounds of the healthy heart are more highly intonated, they acquire a greater audible extent. The louder they are, the further you hear them. And it is the very characteristic of a nervous heart to have its sounds both highly intonated and extensively audible. The greater extent and louder intonation of the heart's sounds may be no direct symptoms of disease or unsoundness in the organ itself : but they may be, and often are, indirect symptoms of disease or unsoundness appertaining to other parts within the chest. Whatever gives more than their natural solidity to the contents of the chest ; pulmonary deposits, in- flammatory or tubercular ; thickened walls of vomicce, a thick- ened pleura and fluid within its cavitj'', aneurismal tumours, and foreign growths and curvatures of the sj)ine ; all these, partly from the compression which they exercise upon the lungs from within or from without, and partlj'- from the amount 8 CLINICAL MEDICINE. [lECT. I. of solid matter appertaining to themselves, give to the sounds of the heart a larger audible sphere within the chest, and exalt their natural intonation. It is well to be aware of all this. Not that the heart's sounds, by their greater audibility and extent, can do more than intimate the possible existence of some such forms of disease. The diseases themselves are discoverable by their own direct signs, and there is no need of questioning the heart con- cerning them. Only we should take especial care that what from extrinsic circumstances seems wrong about the sounds of the heart, be not wrongfidly brought in evidence against the heart itseK, But, besides the sounds naturally annexed to the motions of the heart in its state of health, there is its impulse. Now the fact of the heart's healthy impulse must be left entirely to the touch without further description, as that of its healthy sounds was to the ear. But there is a theory of its impulse lying beyond the immediate reach of the senses, which serves physiologists to dispute and doubt and reason abovit, but not to agree. How many efficient causes, or rather how many various instruments making up the efficient cause, have been spoken of as engaged in producing that single stroke which we feel between the fifth and sixth rib, I will not pretend to say. I confess that no theory of any complex agencies beyond the heart is verified to my apprehension. As the impulse is syn- chronous with the contraction of the ventricles, and the con- traction of the ventricles is surely adequate to produce it, Avhy should we not believe that it does so altogether ? The normal limit of the heart's impulse is somewhat more certain than that of its sounds ; the space within which, neither more nor less, healthy structure and healthy proportion require the heart to be felt is more certain than that within which tliey require it to be heard. But still there are circumstances, and those not inconsistent with health, which interfere with the sensible impulse of the heart, now restricting and now extend- ing it. The same man, according to the varying postures of his body, will alter the place and extent of this impulse. He stands up, and makes it felt just where the apex strikes the chest, at a point between the fifth and sixth ribs, and not beyond it. He leans forward, and makes it felt both at this LKCT. I.] THE SOUNDS OF THE HEART. 9 ])oint und a little above it, and in the direction of the sternum. lie reclines upon liis back, and renders it almost or altogether imperceptible anywhere, lie turns on his left side, and renders it more perceptible than ever, and in a somewhat larger and different space, between the fifth and sixth ribs, and from thence more towards the mamma than the sternum. Again, he turns on his right side, and again he renders the imj)nlse almost or altogether imperceptible. How all this comes to pass is so obvious, that it needs no explanation. The facts themselves, however, are worth bearing in mind. Moreover, many of the same conditions, some entirely con- sistent with health and some exclusive of disease in the heart at least, which make its sounds more or less extensively audible, are found capable of making its impulse more or less exten- sively felt : sucli as redundancy and want of flesh, and the proximity of consolidated structures, by a plain and appreciable operation ; and such as the nervous temperament, by a more mysterious, but not less certain, influence. But, besides the sounds and impulse of the heart, which come from its own vital movements, and cease, when it ceases to live and to move, there are other sounds belonging to it, — sounds with which its vital movements have nothing to do, and which are (as already stated) entirely produced by our percus- sion of the pra^cordial region. These should rather be called resonances than sounds. They tell of solidity and hollowness. And they tell the same equally, whether the man be alive or dead ; though our concern with them, as physicians, is only when he is alive. Take the fifth costal cartilage on the left side, and let a point, midway between its junction with the sternum and its junction with the rib, be the centre of a circle two inches in diameter. This circle will as nearly as possible define the space of the pra)Cordial region, which is naturally less resonant to percussion than the rest. In reckoning thus we suppose the frame- work of the chest fairly proportioned, no chicken-breasted sternum, no curvature of the spine, lateral or anterior, and all the organs within sound, and bearing their due relation of position to each other. Here the heart is uncovered except by the pericardium and a loose cellular texture, and may be said 10 CLINICAL MEDICINE. [lECT. I. to lie in contact with the walls of the chest ; while in the rest of the pnccordial region it is covei'ed, and separated from the walls of the chest, by the intervening- lung. In the space indicated, most practical men would (I think) be ready to admit that percussion conveys to the ear a sense rather of less resonance than of positive dulness. The fact is, if the percussion used be but of moderate force you must listen attentively to make sure that the resonance is really less here than elsewhere. It is only when the percussion used is of a force somewhat painful to the patient, that the ear begins to acknowledge a jjositive dulness. It is well to be aware, that the erect posture is more favour- able than the recumbent for makina: this dulness or diminished i-esonance perceptible to the ear ; and the instant of exsjairation than the instant of inspiration. In the recumbent posture the intervening loose cellular texture is not strong enough still to keep the heart close to the sternum and the ribs, and prevent its receding by the force of gravity. And during inspiration either a larger i^ortion of lung may be brought in front of the heart ; or the portion which is always in front of it may be so thickened by inflation as to thrust backward, for the time, more of the heart than it actually covers. Such are the sounds, the impulses, and the resonances, which belong to the healthy heart. Remember, the sounds and im- pulses are inseparable from it as a living organ, and are brought out by its own vital movements. And remember, the reso- nances are only conditionally annexed to it as a passive sub- stance, and are brought out by our percussion. The short physiological account of them, which has just been given, will probably be found useful to us as we proceed. At all events we may make a platform of it, where we think it will bear us, and tread more cautiously upon it, where we think it will not. Of the sounds, impulses, and resonances of the heart no other varieties have thus far been mentioned than those of degree and extent. And indeed its impulses and its resonances admit of no other varieties, either in health or in disease. But the sounds of the heart admit, moreover, of varieties in kind, which will afford abundant matter for consideration hereafter. IJut let us clear up the subject as we go along, and first LECT. I.] THE SOUNDS OF THE IIKAKT. 11 uiulcrstaiid how- from the sounds, the iinpulsos, and the reso- nances of the unsound or diseased hearl, these being jiist the same in kind as of the healtliy lieart, only more or less in dej^rec or more or less in extent, we are able to gather such important intiniations concerning the nature of its unsoundness or its disease. A clearer sound proceeds from a thin heart and a duller sound from a thick lieart ; a sound of greater extent from a large heart, and a sound of less extent from a small heart. A more forcible impulse is given by a thick heart, and a feebler impulse by a thin one ; the impulse is conveyed to a longci- distance from a large heart, and to a shorter distance from a small heart. All this is surely plain enough, and it is undeniably true. Nevertheless, from its sounds taken alone and from its impulse taken alone, we could come to few trustworthy conclusions re- specting the structural condition of the heart. And why'r liecause its sounds and its impidses are capable of being aug- mented or lessened, both in degree and in extent, by causes extrinsic to the heart. This has been expressly stated already; and these extrinsic causes have oftentimes a power over its sounds and impulses as great as any which the heart itself derives from diseases of its own. This will be abundantly shown hereafter. But, happily, sounds and impulses are the interpreters of each other. The true meaning of the sound is tested by the impulse, and the true meaning of the impulse is tested by the sound. Thus, from a clearer sound, we argue only the probability of an attenuated heart ; but we argue its certainty from a clearer sound joined with a weaker impulse. From a stronger imjjulse we argue only the probability of an hypertrophied heart ; but we argue its certainty from a stronger impulse joined with a diminished sound. When impulse and sound increase together, there is pro- bably no hypertrophy, but the heart is only acting more forcibly from pure excess of nervous energy. When impulse and sound decrease together, there is probably no atrophy, but the heart is only acting more feebly from pure defect of nervous energy. 12 CLINICAL MEDICINE. [lECT. I. When the sounds and impulse of the heart are both per- ceived beyond the proccordial region, they give notice (generally sjDeaking) of dilatation of one or other of the ventricles. If, under these circumstances, sound predominate over impulse, then with dilatation there is cither attenuation, or somewhat less than a proportionate increase of its muscular substance. If impulse predominate over sound, with dilatation there is either hyjaertrophy or somewhat more than a proportionate increase of its muscular substance. Thus it is seen how much information respecting many, the most important structural changes, which the heart is liable to undergo, may be conveyed merely by the greater or less inten- sity, and by the greater or less extent, of its sounds and impulses. But, amid these sounds and impulses, what is the place and what the value of percussion? Wait a moment, and we shall see. For this matter of percussion must first be cleared a little of certain difficulties, which, lie in the way of our rightly understanding its diagnostic uses in application to the heart, before Ave can well see what those uses are. Call to mind the important distinctions between the sounds proceeding from the heart, which reach the ear from simple auscultation or mere listening, and those of which the ear is made perceptive by percussion. The same distinctions hold good between the sounds of auscultation and percussion, from whatever organ they proceed. Xow there is an auscultation and a percussion of the lungs as well as of the heart. Auscultation exercises over the lungs and over the heart a peculiar and separate domain, ascribing to one and to the other what is properly its own, and marking it with a distinctive character, both in health and in disease. But percussion holds a mixed domain over both, leaving undistinguishable hj any certain mark what naturally belongs to either, both in health and in disease. The sounds of the heart, caught by mere listening, and made by its own vital movements, are std generis. They cannot be mistaken for anything else but what they are: they cannot possibly be mistaken for the sound of the lungs. And so too the sounds of the lungs, heard by mere listening, and coming LECT. I.] THE SOUNDS OF THE HEA.UT. 13 from their own vital movonients, aro siii gencrk. They too cannot be mistaken for anything but what they aro: they cannot possibly be mistaken for the sounds of the heart. But the sounds of whicli the ear is made perceptive by per- cussion, whether they be elicited from the heart or from the lungs, are mere degrees of resonance or non-resonance: they have nothing in them which is >iul generis. Those whicli respect the heart may bo mistaken for those which respect the lungs, and vice versa. Nay! the sounds elicited by percussion from foreign substances which have their accidental growth and seat within the chest are not at all different from those belonging to the lungs and the heart. Percussion may find the whole proecordial region dull, and much more than the precordial region. The dull sjDace may extend beyond it laterally, and reach from mamma to mamma ; or it may extend upwards, and reach as high as the second or even the first rib on the left side, and thence, spreading beneath the sternum, reach nearly as high on the right. And all this may be caused by the heart enormously enlarged in all its dimensions. The heart, as it goes on enlarging, pushes the lungs aside, and comes itself almost in complete contact Avith the walls of the chest anteriorly. Still it may not be caused by the heart, but by solidified lung, or by pleural effusion, or by an aneurismal tumour, or by some vast morbid growth. By which of them, however, percussion alone cannot decide. Thus, from the sameness of its immediate results, wlien it is applied to test the diseases of organs within the chest, per- cussion alone can teach us little. And so percussion, if we begin with it, is an useless manoeuvre. But percussion as an auxiliary, and in its proper place and turn, is worth a great deal. It is so especially with reference to the heart and its diseases. We must first listen at the proocordial region with our ears, and examine it with our hands. And thus we may learn all that is capable of being known concerning the condition of the heart: the heart may disclose the whole secret of its disease b^- its sounds and impulses. Or thus we may onl}^ learn a small part of what is capable of being known: the heart may only give an intimation of its disease by its sounds and impulses, and we may still want the means of further information. Here 14 CLINICAL MEDICINE. fLECT. J. percussion is often able to supply all the lielp that we have necfl of: it often comes in as an opportune expositor of the disease, and often stamps a certainty upon our diagnosis, which would be utterly unattainable without it. Whatever forms of disease or unsoundness have the eflPect of augmenting- the general bulk and compass of the heart, lie especially within the reach of percussion, and within the possi- bility of deriving illustration from it. Diseases which issue in superadded substances, in serum or lymph, or pus or blood, accumulated within the pericardium ; forms of unsoundness which consist of thickened muscular structure, or more capa- cious cavities, or of dilatation with hypertrophy, or dilatation with attenuation, all admit of being better understood by help •of percussion. LECT. II.] ON HEART MUILAIUUS. 15 LECTURE II. SOUNDS OF ■riiE m:Airi' dii'fekent ix kind from its natural AND HEALTHY SOUNDS — TO BE CALLED MURMURS. MURMURS ARE EITHER ENDOCARDL\L OR EXOCARDIAL. THE GENERAL CHARACTERS OF EACH. THE ENDOCARDIAL CONSIDERED AS THE SIGNS OF A DISEASED ENDOCARDIUM. CONDITIONS TO BE TAKEN INTO ACCOUNT IN RELATION TO TIIEM AS SUCH. WHAT CONDITIONS HAVE ERRONEOUSLY, AND WHAT HAVE JUSTLY, BEEN THOUGHT ESSENTIAL TO THEIR MEANING, AS SIGNS DIAGNOSTIC OF VALVULAR DISEASE, Of impulses of the heart we know no other varieties than those of degree and extent: and of sounds brought out of the heart by our percussion (tliat is of resonances), we know no other varieties than those of degree and extent. But of sounds, brought out of the heart by its own vital movements, Ave know many other varieties, which are both different in kind from any that are heard in health, and different too from each other. These arise from divers (conditions of disease, and so become the evidences of their existence. This part of the subject, which respects sounds oi the heart, different in kind from the natural and healthy sounds, has been rendered unnecessarily difficult by over-refinement. But surely this ought not to be. Any method by which we seek to make things, in their own nature confessedly perplexed and difficult, better understood, should itself be made as little perplexed and difficult as possible. If Auscultation is to bo trusted for perfecting our diagnosis of diseases of the heart, auscultation must be simple. These sounds of the heart, different in kind from the natural and healthy, have obtained many curious names from similitudes they bear to sounds of more familiar occurrence. Thus they have been called the sounds of the bellows, the saw, the i-asj). IG CLINICAL MEDICINE. [lECT. II. the file ; and the whistling and the cooing sound, and the sound of crumpled parchment, and the churning, and the rubbing, and the to and fro sound. ISow all this music or discord (call it which you will) has some reason in it, as we shall find hereafter. But we must leave it for the present, and begin with something less likely to confuse us. rirst, then, for the sake of avoiding the constant recurrence of the same epithets, let us agree to designate all sounds of the heart, which are unnatural in kind, by the name of Murmurs. And, inasmuch as they are always produced b}' conditions found either within the cavities, or upon the external surface, of the heart, either inside or outside of it, let these murmurs be called Endocardial or Exocardial. The endocardial murmur is not only different in kind from the natural sounds of the heart, but it takes their place, and is heard in their stead. It comes exactly where the first sound, or where the second, or where both sounds should be. It keeps strict time with the systole or with the diastole of the heart, or with both. The exocardial murmur, too, is difierent in kind from the natural sounds of the heart. But it does not take the place of them. It is not heard in their stead. In proportion as it is louder, it obscures or overj)owers the natural sounds. But the natural sounds are still apt to reach the ear through the exo- cardial murmur; and, when they do not reach the ear, it is because they are imperceptible under the circumstances, not because they cease to exist. It would be time and trouble thrown away to dwell long upon these endocardial and exocardial murmurs, with a view of describing Avhat they are in themselves and in contrast with each other. For after all every man must learn them for him- self by the teaching of his own ear. Touching, however, our mere perception of them as sounds, there are a few circum- stances interesting enough to mention, which may chance to help the ear to a readier acquaintance with them. "Whenever we hear any unusual sound, cither for the sake of conveying our notion of what it is to another, or often I'or the sake of being sure that wo have a right notion of it ourselves, we are apt to set about imitating it. Now, any man hearing LEC'T. .II.] OX illLVUT MURMURS. 17 tho endocardial murmur for the first time, as it occurs in tlio great majority of cases, would be almost sure to try and imitale it witli his mouth, and what with whistling and blowing, ho would presently hit upon something so very like it, as to make him pleased with his own cleverness. But, hearing the exo- cardial murmur, such as it is in the majority of cases, for the first time, he would never think of imitating it with his mouth; he would rub his hands together or the cuffs of his coat, or take up any two things within his reach — two pieces of thick paper, perhaps — and rub them together, and, what with brushing, and rustling, and crumpling, he would presently bring out a ver}^ near counterfeit of the exocardial murmur. But these murmurs are to be caught quickly, and dis- tinguished surely, and turned to a ready use, only by practice. Yet it gives a previous confidence in the reality of a distinction between them, to know that the endocardial murmur conveys to all ears the idea of hloicing, and the exocardial murmur the idea of two bodies moving in contact with each other. It may be further stated among their general characteristics, that the endocardial murmur is most frequently a single sound, being coincident either with the systole or diastole of the heart ; yet that sometimes it is a double sound, being coincident with both ; but that the exocardial murmur is rarely less than a double sound. Moreover, that the endocardial murmur is commonly more inward and deeper, and further from the ear, and the exocardial murmur more outward, and nearer to the surface, and closer to the ear. And now for the modes in which these murmurs arc severally produced, or their efiicient causes. First, then, as to the endocardial murmur : it results principally, and most frequently, from unusual vibrations com- municated to the particles of the blood by obstacles, which it encounters in its passage through the heart. The obstacles which thus set the whole conflict a-going are inherent in certain portions of the endocardial membrane rendered unsound by disease. It is possible, indeed, for the blood, sjDontaneously, or at least independent of any known obstacle which it en- counters, to allow vibrations among its particles from which the true endocardial murmur may arise. Cases showing the fact are not of unfrequent occurrence. They form a class of them- 2 IS CLINICAL MEDICINE. [lECT. II. selves; and. a very interesting class it is, and deserving our separate consideration. At present, however, we will limit our attention to the endocardial murmur, which has its origin in an unsound portion of the endocardial membrane. The membrane which lines the cavities of the heart is very liable to disease, but not equally so in every part. Where it is thin and transparent, and admits the colour and character of the muscular structure upon which it is spread to be seen through it, it is seldom found diseased ; but where it is of a denser structure, either in itself or from an admixture of other structures, whether cellular or fibrous, with its own, it is frequently and often exclusively diseased. This character of a denser texture belongs to it where it forms the tough white circles which surround the apertures of communication between the auricles and ventricles : also where it is reflected upon itself, and forms the loose duplicatures of membrane which are given off, as it were, from the internal surface of the heart, either at the fibrous circles intermediate between the auricles and ven- tricles constituting the tricuspid and the mitral valves, or at the commencement of the pulmonary artery and the aorta, constituting the semilunar valves. It is remarkable how curiously disease is apt to limit itself to the spaces just pointed out. Of the fibrous circle between the auricle and ventricle, of the valves which originate from it, and of the tendinous cords which connect the valves with the carneae coluranoc, there will not perhaps be the smallest space free from disease ; but the disease will abruptly stop where the tendinous cords cease and the carnese columna) begin. The membrane, however, where it covers the fleshy columns of the heart, is not exempt from the possibility of disease ; but, when disease actually affects it, it has seldom originated there, but has generally spread from other parts of the same membrane, although (as we have just remarked) it is apt to stop short before it reaches it. Observe, I here speak of disease in the loose sense in which it is commonly taken, the sense, in which a very small part is made to stand for the whole. I mean only its local products and results, not its vital actions and processes, which mainly constitute its essence. Any material product, then, of disease of the endocardium, LECT. II.] ON HEART MURMURS. 19 a pearl of lymph adhering to it, a loose excrescence hanging from it, any interstitial thickening, any deposit of earthy matter or cartilage, is enougli to produce an eddy of the blood, and so ffive occasion to the endocardial murmur. Hence wherever this murmur exists we are at once led to think of an unsound endo- cardium ; but we cannot at once be sure that it is actually unsound. For the exceptional cases, in which the murmur is coincident with a sound endocardium, are by no means rare. As soon, however, as upon reflection we have reason to believe the endocardium actually unsound, we may be almost sure that it is unsound in some portion constituting a valve. For the exceptional cases are indeed extraordinarily rare, in which unsoundness is found affecting other parts of the endocardium and leaving the valves intact. Of all parts of auscultation there is none more interesting than the diagnosis of valvular disease by means of endocardial murmurs. The history of its progress to its present degree of completeness is itself most interesting and instructive. I will give a short sketch of it. And, first, I woidd remark generally, that, with respect to the physical signs esj)ecially which denote disease of the endo- cardium and its valvular structure, as well as disease of the pericardium, the student, who starts from the level of our present knowledge, has a vast advantage over those who are his predecessors by a few years. He can be at once put in the way •of so surely convincing himself of certain truths, that, by a little careful observation, he will soon make them parts of his own knowledge and experience ; whereas we were obliged to work them out for ourselves. Laennec has indeed been in our hands for nearly these thirty years. And Laennec was the great originator of the auscultatory method of diagnosis in its application to the heart more strictly and especially than in its application to the lungs ; and without him to show us the way, this rich and ample field of enquiry might never have been known or cultivated at all. But Laennec, in working out his proofs in detail, admitted some capital errors, which had well nigh made shipwreck of the whole discovery for any useful or practical purpose. Such was that error of his which ascribed (what is called) the second sound of the heart to the contraction of the auricles. 20 CLINICAL MEDICINE. [lECT. II. Now the miscliief did not so mucli consist in making tlie auricles contract with a sound, as in taking the sound thus produced for a notice of time, to which he referred certain un- natural murmurs, and fixed their seat and determined their import accordingly. As thus ; all murmurs coincident with, or immediately consecutive to this contraction of the auricles, i.e. taking place of the second sound of the heart, he held to denote disease of the valves which immediately succeed the auricles in the course of the circulation, viz. the tricuspid or the mitral. You may conceive what errors of diagnosis must have followed the general acceptance of this erroneous matter of fact. The proof, by experiment, that the auricles have nothing to do with the second sound of the heart, or with any sound at all, was the first great step towards a safer and surer appreciation of the diagnostic value which belonged to endocardial murmurs. Still we did not get on. It was easy to affirm, from the j^resence of endocardial murmurs, that valvular disease existed. And the more prudent and more experienced learnt to be content with affirming thus much and no more ; while the less wary, who ventured to commit themselves to a diagnosis of the par- ticular valve which the disease occupied were very often wrong. Still (I say) we did not get on. Still we were striving in vain to reach a more accurate knowledge of valvular disease by means of endocardial murmurs. And the main obstacle to our success turns out to have been another error of Laennec, con- sisting in a certain fallacious canon which he laid down, and which was for a long time generally accepted upon the warrant of his authority. The fallacious canon was this, that each cavity of the heart was instrumental, by its contraction, in producing the murmur which proceeded from the injured valve immediately beyond itself. Thus, when the aortic valve was injured, the systole of the left ventricle produced the murmur by forcing the blood through the narrow aortic orifice. "When the mitral valve was diseased the systole of the left auricle produced the murmur by forcing the blood through the narrow auriculo-ventricular orifice. And since the first natural sound of the heart came from con- traction of the ventricle, and the second sound (as was thought) came from the contraction of the auricle, it was only necessary to ascertain in the place of which of the two sounds the murmur LECT. Il] on heart MURMURS. 21 came, that you might be sure which of the two valves was diseased. If in the place of the first, it was the aortic ; if in the place of the second, it was the mitral. But by maturer observation it was found that this cancn would not hold, and that mere coincidence of the murmur with the point of time, belonging to the first or second natural sound of the heart would not determine wliich valve was diseased. When the murmur was in the place of the first sound the disease indeed often turned out to be, where Laennec would have it, in the aortic valve ; but just as often did it turn out to be, where Laennec would not have it, in the mitral valve. And, when the murmur held the place of the second sound, the disease was always in the aortic valve, where it should never be, and never in the mitral, where it should always be, according to the canon of Laennec. Thus the right key was hitherto plainly wanting to the interpretation of the whole matter. At length there was good reason to believe that the right key was furnished to us by the doctrine of regurgitation ; in other words, by the general fact that, under certain conditions of valvular disease, the blood is not only impeded in its course onwards, but that it does, and must in part flow backwards. Only consider for a moment the proper ofiice of the valves. They are meant (as it were) to keep guard at the orifices of the heart, and throw them wide open to the onward course of the blood, and hold them close-barred against its refluent current. But disease spoils their fitness sometimes for this office, and sometimes for that. In one case it thickens their texture, and hurts their pliancy, so that they cannot fall back and clear the way as completely as they ought, but must leave checks and hindrances when the passage should be entirely free. In another case it shortens and puckers them, and alters their shape, so that they never shut their orifices as they ought, but leave a chink or an aj)erture when the passage should be entirely closed. Thus whether the blood be forced onwards or backwards through a narrow passage, a murmur will equally result. The auscrdtatory sign will be wanting in neither case. The following are among the prominent facts which sug- gested, and taught, and established this doctrine of regurgitating murmurs. And it must be owned, that they are sufficiently puzzling and inapplicable upon any other theory. 22 CLINICAL MEDICINE. [lECT. II. In numerous well- watched cases, where a single murmur, constantly and uniformly coincident with the systole of the heart, had heen heard during life, the valve at the entrance of the aorta, and this valve only, was found diseased after death. Here the- murmur marked the time of the blood passing onwards from the ventricle into the aorta, through an orifice only half open, which should be open altogether. This was no murmur of regurgitation. Aeain, in numerous cases, where a single murmur had been heard during life, but constantly and uniforroly coincident with the diastole and not with the systole of the heart, still this same valve at the entrance of the aorta, and this valve only, was found diseased after death, Here the murmur marked the time of the blood recoiling hachcards from the aorta towards the ventricle, and partially re-entering it through an orifice only half-closed, which should be closed altogether. This was the genuine murmur of regurgitation. Acain in numerous cases, where two murmurs had been heard during life, one coincident with the systole, the other with the diastole of the heart, still this valve at the entrance of the aorta, and this valve only, was found diseased after death. Of these two murmurs, proceeding from one and the same orifice, the latter was the genuine murmur of regurgitation, and not the former. It appeared, then, that the aortic valve, in its states of disease, was capable of becoming the seat of two murmurs, one regurgitating and the other not ; of either separately in different cases, or of both together in one and the same case. Yet again, in numerous cases where a single murmur, con- stantly and uniformly coincident with the systole of the heart, had been heard during life, the mitral valve, and it alone, was found diseased after death, while the aortic valve was perfectly healthy. But how could this be explained ? In its natural course it is during the diastole that the blood passes through the orifice guarded by the mitral valve from the auricle into the ventricle. Here, however, the mitral valve being diseased, the murmur does not mark the time of the blood passing into the ventricle by the mitral orifice, but the time of its passing from the ventricle by the aortic orifice : yet there was no disease of the aortic valve to cause it. The only material thing, capable of producing it, was still the diseased mitral valve. But how LECT. II.] ON HEART MURMURS. 23 could this produce it ? Even by admitting the regurgitation of blood back into tlie auricle. And the very point of time, at which the murmur takes place, marks this for the cause, and this for the manner of its production. The same systole of the ventricle which carries the blood forwards into the aorta, without impediment and without a murmur, where there is no disease, throws it back partially, and with a murmur, into the auricle, through the half-closed mitral orifice, which now admits its regurgitation. It has been said that the aortic orifice of the heart may be the scat of two murmurs, in consequence of disease of its valve ; one systolic, from the blood in its direct course, the other diastolic, from the blood during regurgitation. Either murmur may occur alone in difierent cases, or both may occur together in the same case. But it would almost seem that the mitral orifice coidd be the seat of only one murmur, and that murmur the systolic* Remember, the systolic murmur proceeding from the mitral valve always implies regurgitation. Yet the condition of disease in the mitral valve is often found to be such as must have raised certain impediment to the passage of blood from the auricle into the ventricle. Why, then, is the murmur, which would indicate such impediment, and which would be coincident with the diastole of the heart, a thing not found in practice, when the mitral valve alone is diseased ? It is probable that, as in health, when the mitral orifice is entirely free, the blood glides from the auricle into the ventricle without any impelling force from behind ; so in disease, when the orifice is narrowed, the resistance does not produce any extraordinary efibrt on the part of the auricle to overcome it. And thus in disease, as well as in health, through a narrow passage as well as a free one, the onward current of blood from auricle to ventricle is still without noise. That it is otherwise with the regurgitating current through the same passage, and that the murmur of the blood rushing backward from ventricle to auricle should be often signally loud, must be owing to the force of the ventricle now engaged in impelling it. * The cases are so rare, in which either the diastolic murmur alone, or the systolic and the diastolic murmurs together, can be fairly imputed to the mitral valve, that they are a sort of clinical curiosity. 34 CLINICAL MEDICINE. [lECT. II. Thus by listening to endocardial murmurs during life, and noting the exact time at which they occur, whether synchro- nously with the systole of the heart, or with its diastole, or with both, and then by ascertaining the exact seat of disease within the heart after death, physicians had arrived at a just explana- tion of the way in which those murmurs are produced. They saw such a mechanism, formed by disease of the several valves, as being played upon by the blood during the vital movements of the heart, must needs have given occasion to the murmurs which they heard ; to the direct murmur in one case, to the regurgitating murmur in another, and to both of them in a third. Now this doctrine of valvular regurgitation, which brought with it a clearer insight into the whole rationale of endocardial murmurs, was jaathologically a great step in advance. But in diagnosis it rather seemed a step backward ; for it undid much of our former knowledge by convicting it of error. We were constrained to give up much which we once believed from seeing that it could not possibly be true. Our better pathology was for the present sorely puzzling to our diagnosis. When we heard a loud endocardial murmur during life always accompanying the systole of the heart, and when we often found after death the aortic valve diseased and the mitral sound, and just as often the mitral valve diseased and the aortic sound, our pathological notions were equally satisfied in either case. In the former we acknowledged the sufficient cause of the onicard murmur, in the latter the sufficient cause of the hachvard murmur, and we acknowledged the systole of the ventricle equally instrumental in producing both. But still we could not tell which was y^hich. during life, or when the aortic, or when the mitral valve was unsound. The same endocardial murmur, at the same article of time in all cases, could not inform us which it was in any. But at length we seem to have made a nearer approach to unravel these difficulties of diagnosis, and to discriminate the exact seat of endocardial murmurs during life, as well as under- stand the mechanism of their production. For this purpose, however, there are more things to be taken into accoimt respecting them than their mere coincidence in point of time with the systole or diastole of the heart. Besides this coincidence, two general facts have been put LECT. II.] ON HEART MURMURS. 25 forward, as surer interpreters of endocardial murmurs, in givini^ them a more exact meaning-, and assigning- them to the parti- cular orifice from which they proceed. The first fact is, that endocardial murmurs are most plainly audible at that part of the precordial region which is nearest to the orifice from which they proceed. The second fact is, that endocardial murmurs are conveyed sometimes in one direction and sometimes in another, and that the orifice from which they proceed deter- mines in each particular case what that direction shall be. Of these two general facts, I am more sure of the second than of the first, and have better proof of its practical use. But we will briefly consider them both. " A line drawn from the inferior margins of the third ribs across the sternum passes through the pulmonic valves a little to the left of the mesial line, and those of the aorta lie behind them, but about half an inch lower down."* " A horizontal line drawn through (along ?) the under edge of the sterno-costal articulations of the fourth ribs will cut across nearly the middle of the length of the mitral valve, when drawn outwards and downwards by its tendinous chords and columnoo carneoc, and pass about two or three lines above that portion of the tricuspid which most nearly approaches it, the latter valve lying underneath the sternum, and the former immediately to its left."t So much of the sternum as these lines include to the left of the mesial line, and the space they indicate between the lower margin of the third and the lower margin of the fourth sterno- costal cartilages on the left side, may be taken to mark that portion of the pra^cordial region, behind which lie all the orifices of the heart and a good share of the valvular structures apper- taining to them. Now, inasmuch as the several orifices are found at the basis of their respective valves, the pulmonary and aortic orifices must be lower than the first horizontal line, and the tricuspid and mitral orifices must be higher than the second. How nearly, then, must they all approach one another in the mid-space between them both ! So nearly, that the mouth of an ordinary- sized, stethoscope would surely cover them all within the circle of an inch and half or less. Whichever orifice * Hope, on Diseases of the Heart, p. 3. t Joy, ill Library of Medicine, vol. iii. 258, in a note. 26 CLINICAL MEDICINE. [lECT. II. of the heart be affected, we are sure to find the endocardial murmur here or hereabout. And listening here and here only, we cannot seo:reo:ate the murmur of one orifice from that of another. What then, if " endocardial murmurs are most plainly audible in that part of the prsccordial region which is nearest to the orifice from which they proceed ! " This general fact, taken alone, cannot help us much in determining which of them is afiected in a particular case, when they all lie clustered together at the same, or nearly at the same, part of the prnocordial region. But suppose we raise our ear, or the stethoscope, from this exact spot, and shift it an inch or two higher or an inch or two lower. Higher we may hear the endocardial murmur still, and lower we may lose it altogether. Or higher we may lose it altogether, and lower we may hear it still. Or both higher and lower we may still distinctly hear it. By this procedure we are following the endocardial murmur in the direction it takes after it leaves the orifice from which it is propagated ; and we find how various the direction is, upwards in one case, downwards in another, and both upwards and downwards in a third. But still it is the orifice, from which it is propagated, that gives the murmur its particular direction ; and this (it is said) may be taken for a general fact. Accordingly, when the endocardial murmur is conveyed in an upward direction, even above the basis of the heart, and still along the course of the aorta, and further still, as sometimes happens, along the subclavian and carotid arteries, the aortic orifice is its point of departure, and the valve, there situated, is the valve diseased. "When it is conveyed in a downward direc- tion, and to the apex of the heart, the auriculo- ventricular orifice is its point of departure, and the valve, there situated, is the valve diseased. And when it is convoyed both in an upward and downward direction, both in the course of the aorta, and to the apex of the heart, then it has two points of departure, and both the aortic and the mitral valves are diseased. Here the murmur, which is one to the ear, may be two in fact. The two are made one by being both synchronous with the systole of the ventricle. In this case the murmur from the aortic orifice is direct, and that from the mitral is regurgitating. Or the murmurs thus conveyed in different directions, as they are two LECT. ir.] ON HEART MURMURS. 27 in fact, may be two to the ear. But then one must bo synchro- nous with the diastole, the other with the systole of the heart. In tliat case the diastolic murmur comes almost always from the aortic and the systolic from the mitral orifice ; and the diastolic and aortic murmur is not direct but regurgitating, and the systolic and mitral murmur is regurgitating still. The general fact, that endocardial murmurs pass in certain directions according to the seat of the valvular disease, has yet a further interest and use. It helps us some way towards the differential diagnosis of diseases of the same order of valves on the two sides of the heart. When the murmur, audible in the space between the two horizontal lines above described, is conveyed upwards and beyond the basis of the heart, the disease may be either of the aortic or of the pulmonic valves. The direction that it takes from this point must determine which of the two ; for it may take more than one direction. When it is heard passing upwards for the space of two inches, and between the second and third ribs of the right side, then it is taking the course of the aorta, and the disease is of the aortic valve ; and still more surely, if it be heard in the carotid arteries. But when it is heard passing upwards between the second and third ribs, not of the right but of the left side, then it is taking the course of the pulmonary artery, and the disease is of the pulmonic valve ; and still more surely, if it be not at all heard at the same time in the carotids. I doubt whether it would bo possible to arrive at a differential diagnosis of diseases of the mitral and tricuspid valves from any ascertainable difference in the direction to which the murmur originating from one or the other is conveyed. It should be remarked, that valvular disease on the right side of the heart alone is a most rare occurrence ; and that, when it is found on both sides together, the disease on the left generally so far outruns that on the right, as to have reached its acme before the other has hardly begun. Hence, in the vast majority of cases, valvular murmurs proceed from the left side exclu- sively ; and, in the few cases, where they proceed from both, those from the left will probably be so much the loudest as to overpower those of the right. And in the still fewer cases, where they proceed exclusively from the right, they are sub- 28 CLINICAL MEDICINE. [lECT. II. mltted too rarely to our observation for us to be familiar with. the peculiarities which belong to them. In truth, almost all our knowledge of endocardial murmurs, proceeding from valvular disease, is derived from our study of those which appertain to the left side of the heart. Finally, then, is the doctrine of valvular regurgitation, are the notices of time marked by the systole and diastole of the heart, is the fact of sounds being heard more plainly in one part of the prECCordial region than another, or the fact of sounds being conveyed in this or that direction within or beyond the precordial region, forward or backward, with the current of the blood ; are all these facts true and stable, and general enough to hold the place of principles ? And, if they be, will they bear to be taken, always and without reserve, as the sure exponents of endocardial murmurs, so far as to fix the valve or orifice of the heart from which they proceed ? I dare not affirm so much. I do, indeed, still make use of them as principles, but I am less peremptory about the certainty of their application than I was a year or two ago. Often the event has been just as they would indicate. But occasionally it has been contrariwise ; and the exceptions I have not always been able to explain without prejudice to the assumed prin- cij)les. But we should not be in a hurry to abandon such general facts as these which have often led us right, because they have sometimes seemed to lead us wrong. We should rather suspect the occasional interference of counteracting circumstances, which we do not yet understand. In the history of our pro- fession we meet too often with things utterly worthless capriciously taken up, but sometimes with things really valu- able capriciously laid aside. Among the conditions, which may possibly intervene to turn endocardial murmurs from the direction in which the disease of particular valves would tend to convey them, the following may be mentioned : 1st. The presence within the chest, and exterior to the heart, of substances having a more solid consistence than its natural contents, such as morbid growths of various kinds, or anourismal tumours, or condensed portions of lung. These are able to conduct the abnormal murmurs, no less than the natural LECT. II.] ON llEAliT MUKMUKS. • 29 sounds, of the heart, to a g-rcater distance, and in any direction, according- to the place they occupy. 2dly. The enlarged capacity of the heart itself, wliich is the most frequent consequence and concomitant of its diseased valves. The large dilated heart spreads its sounds abroad laterally. And thus, whether the murmur be traced in the course of the aorta, or not at all above the basis of the heart, it is often as loudly audible from mamma to mamma, and every where in front of the chest below the fourth ribs, as in the priTCordial region itself ; and often even far round towards the left axilla. odly. The mere loudness of the endocardial murmur. The abnormal murmurs, as well as the natural sounds, of the heart, arc heard to a greater distance in proportion to their mere loudness, and that not only in the directions to which the current of the blood conducts them, but in all directions. Now, when these three conditions meet ; the loud endo- cardial murmur, itself very widely audible, and the enlarged heart, ready to spread it still further abroad, and some solid substance within the chest ready, according to what its seat may be, to conduct it in any new direction, no wonder that the tendency of a diseased valve to convey and to restrict the same murmur within a particular channel should be sometimes counteracted and disturbed. To these several conditions I may add a fourth, viz. a peculiar quality of the endocardial murmur, giving it a high musical note. Such a murmur will sometimes refuse to sufi'er restriction to any certain space within the body. It will even carry itself outwards and reach the ears of bystanders at a short distance. Touching endocardial murmurs, as the signs of endocardial disease, there remain two more points to be considered. They have been relied upon, not only for fixing its seat in this or that orifice of the heart, but also for estimating its magnitude and the amount of impediment raised by it to the passage of blood, and for determining the Icind of structural change which it has produced. The popular notion seems to be, that the louder the murmur the greater the disease, and the greater the amount of impedi- ment. 30 CLINICAL MEDICINE. [lECT. II. The truth, however, is, that the murmur becomes louder as the disease and the impediment increase only up to a certain point, and then, that it becomes less and less loud as they go 'on to increase beyond this point. Thus the disease and the impediment still increasing may, and sometimes do, reach a point at which the endocardial murmur ceases thenceforth, and altogether, as long as life remains. Two individvials of unsound heart died within a few days of each other. I witnessed the symptoms of their disease during life, and after death I saw what that disease actually was. In both the right ventricle was dilated, and the left was dilated and hvpertrophied ; and in both the mitral valve and the aortic valve were diseased. But the valvular disease, and the impedi- ment resulting from it, were far greater in one case than in ^he other. In the one the auriculo- ventricular orifice was so nar- rowed as only just to admit the little finger, and the aortic orifice was only just not closed. In the other there remained a tolerably free space for the passage of blood through both orifices. Now in the first case during life there was no endocardial murmur at all ; while during life in the second there was a loud bellows-murmur audible in the whole praecordial region, and far on either side of it, and beyond it upwards in the course of the aorta. All this seems to admit of easy explanation. When endo- cardial murmurs result from diseased valves, there are two agents engaged in producing them, viz. the mechanical obstacle which the blood encounters, and the blood itself. It is from unusual vibrations among the particles of the blood that the unusual sound immediately proceeds; but it is the obstacle which sets the conflict agoing. Now the sound must be in proportion to the vibration ; and the vibration is in proportion to the amount of the obstacle and the quantity of blood and the rate at which it circulates taken together. Thus the endo- cardial murmur becomes louder and louder while the valvular disease is upon the increase, as long as the heart by its increas- ing thickness is still able to force a large current of blood through a moderately contracted orifice. But the endocardial murmur becomes fainter and fainter, and at length ceases alto- gether, as the valvular disease, by its further increase, goes on LECT. II. J ON IIE.VRT MURMURS. 31 still to narrow the orifice, and the ventricle with all its increas- ing thickness can only force the blood through it in a more and more slender stream. Further, there is, or, rather, perhaps there was, a notion- that endocardial murmurs have wonderful diagnostic secrets wrapped up in their varieties of kind and quality ; and that all those similitudes, which they are in different cases found to bear to the sounds of the bellows, the saw, the rasp, the file, or to whistling or cooing, were worth our serious study, inasmuch as they severally denote the very land of structural change which a diseased valve has undergone, whether it be converted into cartilage or earthy matter, into matter hard or soft, or rough or smooth. Experience, however, does not countenance the belief, that the land of endocardial murmur follows the hind of endocardial disease. But upon what do the varieties of murmur which accom- pany valvular disease really depend ? Go into the wards of this hospital, where there are always numerous cases of diseased heart ready for observation, and perhaps you will find three or four or half a dozen patients, in whom the endocardial murmur is strongly marked, and has those accompanying conditions (you know what they are) which make it highly probable, not only that the disease is valvular, but valvular disease of the same orifice in them all. But the murmur will have as many varieties as there are patients; yet it will be characteristically endocardial in all, while it is different in each. Then go into the museum, and scrutinise half a dozen specimens of disease in a particular valve. Let it be the same valve which you believe to be the seat of disease in the patients whom you have been examining in the wards. In all the specimens you will find the orifice to which the valve belongs obviously narrowed, but so narrowed as to leave the stricture of different size and different form in each. Thus the orifice will have become a pipe or a funnel or a chink in the several cases. In one it is direct, in another tortuous; in another it has a bar drawn across it, and has two apertures; in another it has several bars drawn across it, and is cribriform. No wonder then will any longer remain, that in the wards of the hospital the patients whom you believe to have the same valve of the heart diseased should all present the characteristic 32 CLINICAL MEDICINE. [lECT. II. endocardial murmur, but each a different variety of it. The murmur, with its accompanying conditions, denotes the val- vular impediment and the orifice it occupies, while its varieties arise from the different sizes and shapes of the orifice through which the blood has to pass, and the rate at which it passes. Upon the whole, my persuasion is, that no practical good has come from curiously naming, and noting, and multiplying endocardial murmurs. The mere murmur can only tell me whether it proceed from the inside or from the outside of the heart. For more than this I cannot trust it. But in telling me this, it tells that which I have no possible means of knowing without it. Having determined that the murmur is endocardial, and proceeds from within the heart, if I desire to know, moreover, whether it arise from valvular disease, and from valvular disease on which side of the heart and at which orifice ; then for this more exact diagnosis I must add to the mere endo- cardial murmur a reckoning of the time at which it occurs, and a reckoning too, of the space within the precordial region at which it is chiefly heard, and of the direction in which it is conveyed. And if (what is most important of all) I aim at a diagnosis of the endocardial disease in respect of its essence and nature, then to the mere sound, and its time and its place and its direction, I must add a reckoning of the actions and sufferings of the constitution at large which precede it and attend upon it. These, which are the highest considerations of all, are reserved for their proper place. In the mean time I would observe of the mere murmiir, that nothing would be lost in propriety of language, and much gained in simplicity, if the term endocardial were made to include all its ordinary varieties which proceed from within the heart, and were the single term in common use ; and if the fantastic similitudes which have been mentioned were only now and then employed to help us in describing something extra- ordinary, it would be all the better. LECT. III.] ENDOCARDIAL MURxMURS. S.'J LECTURE III. ENDOCARDIAL MURMURS CONTINUED. — THEIR ORIGIN FROM VAL- VULAR DISEASE SOMETIMES DOUBTFUL. MAY PROCEED FROM OTHER FORMS OF MECHANICAL IMPEDIMENT. DEFORMED CHEST, EXTERNAL PRESSURE. ENDOCARDIAL MURMURS SOMETIMES CONFOUNDED WITH THE MURMUR OF RESPIRATION. A PECULIAR MURMUR, AKIN TO THE ENDOCARDIAL, A FREQUENT CONCOMITANT OF PULMONARY C0NSU5IPTI0N. EN- DOCARDIAL, ARTERIAL, AND VENOUS MURMURS, PROCEEDING FROM IMPOVERISHED BLOOD. EXOCARDIAL MURMURS. — THEIR SEAT THE PERICARDIUM. THEIR ONLY KNOWN CAUSE THE FRICTION OF ITS SURFACES IN A STATE OF DISEASE. If ever a single sign could be taken at all times to denote one thing and one thing only, you might think perhaps it must be the endocardial murmur to denote mechanical impediment from valvular disease. The theory of its production by this cause is very plain and intelligible ; and many a man's experience may have run uniformly in confirmation of it in every instance, without exception, which has fallen under his notice. But still individual experience, be it ever so large, is not all expe- rience ; and truths without exception are not the truths most commonly met with in medicine. There are cases of endocardial murmur in which valvular disease is at least doubtful ; and cases of endocardial murmur in which there is mechanical impediment but no valvular disease ; and cases in which there is neither mechanical impedi- ment nor valvular disease ; and there are cases, too, in which the ear itself is apt to be deceived into the belief of a murmur proceeding from the heart, when there is no such murmur in fact. Now it is unwise so to treat of any medical subject as if it were complete. Yet nothing, it must be allowed, is more useful than to give that order and arrangement to the many 34 CLINICAL MEDICINE. [lECT. III. accordant facts of medicine into which, they naturally fall. But still a place must be found for other facts, few in number, which are really or apparently contradictory to the rest, or at least do not altogether harmonise with them. Here, then, I must find a place for some of the rare facts just alluded to, which have fallen in my way, touching endo- cardial murmurs. I will state them, and comment briefly upon their pathological bearings and relations as I go along. I occasionally^ find the endocardial murmur under circum- stances unlike those usually attending it when it is the un- doubted result of valvular injury, and yet it probably does l^roceed from valvular injury nevertheless. There are cases in which the murmur is not constantly present. It comes and goes ; and the circumstances under which it comes and goes are to interpret for us the nature of the disease out of which it sjDrings. This has sometimes occurred to my observation. The patient has been sensible of uneasiness in the region of the heart, and of occasional palpitation. Upon examination I have found the impulse slightly in excess, and the sounds louder and more diff'used than natural, and nothing more. But these are the common accompaniments of nervous disorder ; and accord- ingly I have been about to conclude the heart to be perfectlj^ Bound, and to dismiss my patient with the comfortable assu- rance that such was my belief. For my further satisfaction, however, I have made him walk briskly once or twice round Ihe room, and then listening again, I have found the impulse of the heart considerably augmented, and an unquestionable murmur. A few minutes of quiet have moderated the impulse, and stilled the murmur : but he has taken another turn round the room, and both impulse and murmur have returned. And thus has the murmur been audible on exertion, and inaudible on repose, several times in a quarter of an hour. Now here, where we can make the murmur come and go at will, simply by augmenting and reducing the force of the heart's action, it is reasonable to believe, that there may be a mechanical obstacle at an orifice of the heart, but that it is of small amount; not enough to cause the requisite degree of vibration when the current of the blood is slow and imdis- turbed, but quite enough when it is more rapid and forcible. LECT. III.] ENDOCARDIAL MURMURS. 35 This view of the matter obtains some illustration from what has fallen imder my observation in certain cases of rheumatic endocarditis, where a perfect cure has ultimately taken place. Here, before the endocardial murmur has ceased altogether, there has often been a period during which it has been some- times absent and sometimes present — absent during repose, present on exertion. You will hardly yet be able to see the force of this argument, in which I am anticipating a part of our subject to which no allusion has hitherto been made ; but you will see it and appreciate it hereafter. Three or four cases have fallen under my notice where an endocardial murmur has arisen for the first time a few days before the patient's death. I have been quite sure that it has not existed previously, and I have had no prior suspicion of disease of the heart. In these cases the act of dying was slow and lingering. And although the murmur was declared a few days before death, it did not arise until the dissolution might be said to have already begun. But unfortunately the oppor- tunity has not been afibrded me of making inquiry into the cause of this remarkable circumstance after death. I conjectured that it might be owing to blood which had begun to coagulate within the ventricle, or even to inflammation of the endo- cardium, such inflammation (as we shall see) may take place at the very going out of life, and deposit lymph. The following case was kindly communicated to me by Dr. Maclachlan of Chelsea Hospital : — "An in-pensioner, aged 61, long affected with paralysis and other symptoms indicating organic affection of the brain, became bed-ridden about a fort- night before death. He lay in a lethargic semi-comatose state, and had great difficulty both in comprehending and in answer- ing questions. During the last week of his existence the heart's action became inordinate, and both sounds were accom- panied by a hriiit de soufflet audible only in the praecordial region. He died on the 25th of January." " On the 21st of the month, the following is the report I made of the physical signs ; and, as they interested me much, I made repeated examinations, at different hours, always with the same result, the sounds varying in degree with unknown circumstances. *' Percussion unusually clear in the praecordial region ; 36 CLINICAL MEDICINE. [lECT. III. lieart's action inordinate, but regular ; impulse seen as well as heard. Both sounds are accompanied with a hniit de soufflet, more intense with the first. There is a most peculiar^ short, clear, abrupt barking sound occasionally heard, which has its greatest intensity immediately behind the nipple, and extends only a little way on either side of it. This sound bears a remarkable resemblance to the yelping of a very young puppy dog. It appears to commence with the first sound ; to be for an instant, and then to cease immediately. When it is loudest, it is easily heard with the ear a little removed from the end of the stethoscope. There is no fremitus, and the bruits are not audible in the larger arteries, or beyond the praecordial region. The man appears to suffer no pain ; and pressure underneath the ribs, in the direction of the heart, neither affects the breathing nor jDroduces uneasiness. The pulse is small, soft, and regular. " Scarcely any change took place in these signs up to the termination of the case, with this exception, that, as the heart's action became more feeble, the peculiar yelping sound dimi- nished in intensity and frequency. " On examination, forty-eight hours after death, I found nothing to account satisfactorily for the production of the sound alluded to. The pericardium was, however, unusually thin and dry, and contained much less than the usual quantity of fluid, for it scarcely amounted to half a drachm. It was not rough, nor did it present any evidence of inflammation. The heart felt firm, was preternaturally small, and the left ventricle presented a beautiful specimen of concentric hypertrophy, the walls exceeding an inch in thickness, and the cavity scarcely admitting an ordinary- sized nutmeg. The right ventricle was in all respects natural, and the valves of all the cavities, as well as of the arterial trunks, were sound." Here, with the appearances after death to help me, I can come to no reasonable explanation, how the endocardial murmur was produced during life. The case is very striking in all its circumstances, and well worth recording ; and the best place I could find for it is this, where I am speaking of the endocardial murmur, never heard before, being first noticed among the symptoms of dissolution. Can the heart, by the mere force of its contraction, produce LECT. III.] ENDOCARDIAL MURMURS. 37 a murmur exactly resembling that which jji'occeds from Talvular impediment ? Perhaps it can. A young woman, herself in perfect health, nursed an infant, to whom she was greatly attached, in an attack of hydrocephalus. The infant died, and she was seized with yiolent hysterical emotion. I did not see her until the nervous struggle had come to an end, and she was lying in bed apparently free from present excitement. But the heart was still contracting with excessive force, and with the loudest possible bellows-murmur. The next day the heart was beating quietly, and the murmur was gone. It is (I believe) a rare thing in adults, but in children com- mon enough, for an endocardial murmur, simulating valvular disease, thus to arise from the mere force of the heart's con- traction. Again, I have found the endocardial murmur under circum- stances in which it was assuredly owing to mechanical impedi- ment encountered by the blood in its passage through the heart, and where the nature of the impediment was obvious enough ; but it was not valvular injury. Strange things happen to the heart when the chest is deformed. There is an end of our pretending now to calculate what its condition may be by listening and feeling and per- cussing. Its sounds and impulses and resonances, be they what they may, are now worth nothing at all as guides to diagnosis. The heart is dragged from its proper seat, and imprisoned in some strange place, and perhaps turned almost topsy-turvy by the encroachment of the vertebral column and the approxima- tion of the ribs. And thus cramped in and hooped about with bone, at every movement it gives a jar that may be felt, and a sound that may be heard in every part of the chest. And this sound, which is thus conveyed to a distance, is seldom the natural sound ; but a loud whiz, the same in kind and the loudest in degree, which belongs to mechanical impediment from valvular disease. And mechanical impediment there is, but valvular disease there is none. The weight and pressure, which the heart or its large vessels sustain from the hard frame- work of the chest, raise the impediment, and throw it in the way of the circulating blood. Here the cause from which the endocardial murmur pro- 38 CLINICAL MEDICINE. [lECT. III. ceeds is without the heart, but unthin the body. It may be both without the heart, and without the body. A little boy, aged eight years and a half, high-spirited and vivacious, but thin and out of health, was brought to me under a suspicion of disease of the heart. Its impulse was not felt beyond the apex, but there it was in excess ; yet there was no larger space of dulness than natural in the prsecordial region. Upon auscultation, however, this remarkable peculiarity was made out. When the ear or the stethoscope rested gently upon the praecordial region, no unnatural sound whatever was heard. But when either the ear or the stethoscope was applied with such force as to cause the ribs to sink a little below their natural level, then a loud bellows-murmur sprang up. The space at which it was heard, and not beyond it, was just so far as the mouth of the stethoscope covered, when it was placed upon the cartilage of the third rib as a centre. Below and above this spot the murmur vanished, and it was audible neither in the course of the aorta nor in the carotids. This case, which occurred to me five years ago, has made me watchful ever since, lest haply I might sometimes create the murmur I was in search of. And it is no needless caution where the patient is young and the frame-work of the chest is yielding. Never, indeed, the chest being not deformed, never but in this single instance, have I produced a murmur simulat- ing that of valvular disease. But very often, when, over- earnest in what I was about, I have pressed too heavily upon the proccordial region, a sort of jarring sound has reached my ear, and brought with it the susjDicion of disease, until setting the heart free from the weight and the restraint which I had inadvertently imposed upon it, I have at once lost the sound and the apprehensions too, which had arisen from my own awkward manoeuvring. It is well to know this possible fallacy of our own making, and so to guard against it. But, though by pressure upon the praecordial region, I have often produced some unusual sort of endocardial murmur, never (as before stated), where the chest has been free from deformity, have I produced the murmur exactly simulative of that which belongs to valvular disease but in this one instance. LECT. III.] ENDOCARDIAL MURMURS. 39 The cticken-Lrcast, which, scarcely passes for a deformitj', is often sufficient greatly to alter the relation of the heart to the walls of the chest. It often thrusts it forward, and brings its whole anterior surface in contact with the sternum and ri1)s Hence in such cases the question, whether the heart be sound or unsound, becomes puzzling enough. Sound or unsound, its impulse is to be felt and seen in all the space at which it lies in contact with the chest, and the same space is dull to percussion. Extensive precordial impulse and extensive proocordial dulness are the very signs of hypertrophy ; and if to these be super- added the endocardial murmur, j^ou have the complete signs denoting the commonest form of complex unsoundness which the heart is apt to imdergo, viz. hypertrophy with valvular disease. But beware, now especially, beware, of creating the endocardial murmur by the application of the ear or the stethoscope to the precordial region. ^Nothing is easier. I have done so frequently in such cases by way of experiment. There is yet another possible fallacy imputing an endo- cardial murmur, and with it the suspicion of disease to the heart, where no such murmur and no such disease really exist. Here, however, the fallacy is not of our own making, but arises altogether from a perplexing coincidence of action between the heart and the lungs. It has been said that endocardial murmurs are best imi- tated by modulations of the breathing and by help of the mouth. Hence it is not to be wondered at that there should be an endocardial murmur which nearly resembles the natural murmur of respiration. The commonest of all the endocardial varieties is the bellows-murmur ; and the natural murmur of respiration is only a gentler sound of the same kind, but more prolonged. Hence the morbid sound of the heart and the natural sound of the lungs are sometimes so much alike, that, if the systole of the ventricles and the act of inspiration kept time with each other, it might not be easy to determine from which of the two organs the murmur came. And, in point of fact, I have sometimes listened and hesi- tated, and hesitated and listened again and again, before I could satisfy myself that a murmur which came altogether from the lungs did not in part proceed from the heart also. It has been carried with an impulse into the ear as if it 40 ' CLINICAL MEDICINE. [lECT. III. came from the heart. The method of clearing up the doubt is to auscult the heart, while the respiration is suspended for a quarter of a minute. I must here find a place for noting a certain auscultatory phenomenon, which, though it may not have struck the general observation, is frequent and familiar to my own, and has gained an importance in my eyes from the pathological con- ditions with which I have found it associated. To the ear it claims kindred with endocardial murmurs. But althoucrh the heart may be instrumental in producing it, it is not at all per- ceived within the precordial region, but in a certain definite and circumscribed space beyond it. Fancy a line drawn from the left side of the sternum along the upper edge of the second costal cartilage and continued an inch along the second rib ; and another line drawn from the sternum along the lower edge of the third costal cartilage and continued an inch along the third rib. Between these two lines a space is included, in the whole or in part of which a murmur is often audible coincident with the systole of the heart, when no such murmur can be perceived either in the pra3cordial region, or in the course of the aorta, or in the carotids, or in any part of the arterial system, but here and here only. It is a gentle bellows-murmur, quite obvious to the ear and unmis- takeable in its character. Of such a murmur, often audible in this situation exclusively, I am certain as a matter of fact, and certain too of its very remarkable accompaniments. I have witnessed it either in those who were undeniably consumptive, or in those who were too justly suspected of being so. I cannot say in what pro- portion of the phthisical it occurs ; but I am continually meeting with it. Yet my knowledge goes no farther than the living symp- tom. I have gained no explanation of it by dissection : I have only a clinical experience of the matter. But there is a practical usefulness in the mere experience of coincident facts, though their pathological relation be not yet understood. Thus, where from my direct examination of the lungs I cannot get beyond a suspicion of tubercular disease, the murmur in the space indicated must always contribute to confirm it. Supposing the pulmonary artery in its first divisions to be LECT. III.] BLOOD MURMURS. 41 the seat of the murmur, does it become such in consequence of its own disease or by reason of pressure or impediment reaching it from diseased lung- ? Thus far we have dwelt upon endocardial murmurs, as the result of mechanical impediment to the circulation, real or sus- pected ; real, when it proceeds from known valvular disease ; suspected, when it proceeds from other causes which are less surely ascertained. Moreover, we have noticed, by the way, the possible fallacy in some cases of mistaking the respiratory murmur of health for the endocardial murmur of disease. And we have alluded to a murmur accompanying the systole of the heart, and heard in a certain thoracic space, and remarkable for its frequent coincidence with pulmonary consumption. Certain endocardial murmurs yet remain to be noticed, which are quite distinct jDathologically from all these. Syn- chronous with the systole of the ventricles, audible in the praj- cordial region, and extensively diffused through the arteries, resembling the bellows-sound, and so having the commonest quality of endocardial murmurs, not distinguishable by the ear from those which proceed from mechanical impediment to the passage of blood, yet themselves springing from a different cause, they form a class by themselves, and a most important class it is. I allude to the cases in which there is an unnatural sound, both endocardial and arterial, and yet no change of structure in the heart and arteries, but a change in the relative propor- tions of the constituent elements of the blood. The one general fact with which the sound is constantly associated is an impoverishment of the blood, or the state in which its red globules are deficient and its serum is in excess. Now this impoverishment of the blood would seem to stand to the endocardial murmur in the relation of a cause from observation of their constant coincidence merely; and much more so, from the observation that, upon removal of the first, the second always ceases. In proportion as under proper medical treatment the blood becomes richer, and is made to abound more in red globules, the murmur waxes fainter and fainter in the heart and arteries, until it is finally altogether inaudible in both. But if this endocardial and arterial murmur be really 42 CLINICAL MEDICINE. [lECT. III. owing to an impoverished state of the blood, one would expect to find that the simple abstraction of blood to a large amount would produce it at any time in a healthy person. And so it will. "We are not indeed accustomed thus to bleed healthy persons purelj^ for the sake of experiment. But healthy persons sometimes become the subjects of such treatment in the case of accidents and injuries, and in the first access of acute inflamma- tion ; and then we take advantage of the occasion for learning the effect of the experiment beyond the purpose for which it was instituted. And so we find that, if in a healthy man we carry bleeding far enough to blanch the surface of the body, we create an audible systolic murmur in the pra)Cordial region, and diffuse it through the arteries. Now this murmur is prominently characteristic of certain forms of disease : and, knowing how w^e can produce it at will, we should expect to find nature producing it exactly or nearly in the same way. Profuse or protracted monorrhagia, by the time it has blanched the skin, has this murmur for its sure accompaniment. Here is direct loss of blood. Chlorotic anjEmia has the same. Here is no direct loss of blood, but, w^hat is tan- tamount to it, a defect or failure of the assimilatory functions, whence the mass of blood is not replenished in due projDortion to its expenditure upon the uses of the economy. Generally accompanying the endocardial and arterial mur- mur, when it is owing to ansemia or an impoverished blood, there is another soimd quite difierent in kind, and formed neither in the heart nor in the arteries, but traceable to the same pathological condition. In following the murmur from the heart along the aorta and the subclavian artery, and then above the clavicle, when you reach the carotid you find a new sound superadded to it. You perceive the bellows-murmur coming and going with distinct whifis, and keeping time with the systole of the heart in the neck as in the chest ; but in the neck you perceive, moreover, a continuous hum, like that which reaches the ear from the hollow of a marine shell. This is a thing so evident, that it was noticed and described, and variously speculated upon by those, who first practised auscultation. But their speculations were wide of the mark. Whence or how it arose no one could tell, until the sagacity of Dr. Ogier Ward traced it to the veins, and LECT. III.] VENOUS MURMURS. 43 showed it to proceed from tlic movement of the blood within them.* The vein, which offers itself most readily to the application of the stethoscope, and admits all the easy experiments which serve to certify the fact, is the internal jugular. Place the instrument upon the neck by the side of the trachea, and pretty close to it, and at the same time rest your finger upon the space between the angle of the jaw and the mastoid process ; and when your ear has caught a continuous humming sound, and listened for a while and made sure of it, then press your finger firmly down upon the vein, and the sound, if it be the true venous murmur, will immediately cease ; then raise your finger, and if it be the true venous murmur, it will immediately return. A little manao-ement and address are needed to find this venous murmur, and then keep it within hearing when you have found it. I have seen it found by accident, heard for a minute, and then lost and never heard agaim The instrument has been laid carelessly upon the neck and the murmur has been audible immediately ; and then, in expectation of making it heard to more advantage, the neck has been put upon the stretch, the chin raised and the head thrown back, or turned far round to the opposite side, whereupon the murmur has ceased. Then the neck has been relaxed, the head brought forward, and the chin inclined towards the sternum, but the murmur has not returned. The truth is, a very free current of blood is essential to the production of the venous murmur. A slight degree of pressure upon the vein will alter its character, and pressure very far short of that which would arrest the current of blood will abolish it altogether. And thus the neck being put upon the stretch, the muscles, which lie parallel with the vein and across it, are made to exercise pressure enough upon it to interfere with the free current of blood, and to ^top the sound : or the neck being relaxed, the vein and the integuments get folded together, and so pressure is produced in another way, and this equally stops the sound. Try different degrees of pressure upon the internal jugular vein with the stethoscope when the venous murmur is distinctly audible, and you will find how lightly you must hold the instrument to keep it constantly within hearing, how inconsiderable an amount of pressure will * Med. Gazette, vol. xx. p. 7. 44 CLINICAL MEDICINE. [lECT. III. obliterate it, and how eacli degree short of that which obliterates it will give it sundry varieties, and make it musical. Now these murmurs, whether appertaining to the heart and arteries or to the veins, which have their origin in the quality of the blood that circulates within them, furnish an eminent example of the highest degree of comprehensiveness both for knowledge and for use, which can belong to the idea of a symptom. Where these murmurs are, there a countless variety of other symptoms is found in company with them, pointing to all organs of the body, and giving notice that the functions of all are going wrong; the surface pale and cold, palpitation and dyspnoea, appetite perverse, digestion imperfect, nutrition insufficient, secretions scanty and unhealthy, pain everywhere, and a shat- tered nervous system and an enfeebled brain. Such a portentous crowd of symptoms strikes the observation at once. But what they all mean, we cannot tell, until we take one single symptom for their sole and sufficient interpreter. The murmur which is at the same time endocardial and arterial and venous is com- prehensive of them all, and includes the knowledge of them all, inasmuch as it points directly to their one common source, even the impoverished blood. And further, this same murmur not only contains the knowledge of all the rest, but it is the single representative of them all as an indication of treatment. Standing, as it does, for the sign of impoverished blood, we treat what it denotes, and nothing else. But in so doing we treat inclusively every error of function throughout the body which proceeds from it. Such are endocardial murmurs, which have their origin and seat and efficient causes within the heart, which are different in kind from its natural and healthy sounds, and which take the place of them.4 Their causes (as far as our present knowledge has reached) may consist in unusual vibrations induced among the particles of the blood either by mechanical obstacles which it encounters in its passage, or (whether directly or indirectly) by a change in its constituent elements, and quite independent of such obstacles. But there are also exocardial murmurs, of which the general characteristics have been already given. These have their origin and seat and efficient causes without the heart ; and. LECT. III.] ENDOCAIiDIAL MURMURS. 45 while they are different in kind from its natural and healthy sounds, they do not supersede them, or take their place, or necessarily interfere with them in any way. They are formed in the pericardium. The lungs and the pleura, and the heart and the pericardium, have many things which bear a resemblance or analogy, so far as regards the murmurs resulting from them respectively in their several diseases ; these may be now usefully adverted to in illustration of that part of our subject at which we have arrived. Such is the structure of the lungs that they perform their natural and healthy functions with certain perceptible sounds. But such is the structure of the pleura that no perceptible sound whatever attends its natural and healthy functions. The pleural surfaces glide over each other in perfect silence, and the ear can catch not the least notice of their contact and movement in opposite directions. Hence this difference belongs to the auscultatory signs arising from diseases of the lungs and of the pleura respectively ; that in pulmonary diseases the auscultatory signs consist of the natural sounds exaggerated or diminished, or occasionally modified, as well as of new sounds, whereas in pleural diseases, there being no natural sounds to be exaggerated, diminished, or modified, the auscultatory signs consist of new sounds alone. The same may be said of the heart and the pericardium. Take the heart apart from the pericardium, and it never moves without a sound. Take the pericardium apart from^the heart, and it never moves with one. Take the diseases of the heart apart from those of the pericardium, and the auscultatory sounds denoting them may consist of its natural sounds exaggerated, diminished, or variously modified, or of sounds altogether new in kind. Take the diseases of the pericardium apart from those of the heart, and the auscultatory signs denoting them (since the pericardium has no natural sounds capable of being exagge- rated, diminished, or modified) must always consist of sounds new in kind, and of such only. Farther, the lungs and the heart have not only the elements of their diseased murmurs contained in their natural sounds, but it is by the same instrumental means that they bring out both ; and these are the very instrumental means of their own 46 CLINICAL MEDICINE. [lECT. III. vital functions. It is tlie air by wliich, and out of which, the lungs effect their office of respiration ; and it is the air by which they form the sounds which are the audible notices both of their health and their disease. It is the blood by which, and for the sake of which, the heart fulfils its office of circulation, and it is the blood by which it makes its sounds of health and its mur- murs of disease. But it is otherwise with the pleura and the pericardium. As there is no element of the to and fro sound discoverable in health, so there are no instrumental means then in operation out of which it could be formed. The pleura does not make its attrition- sound by the respired air, or the pericardium its attrition- sound by the circulating blood. But the instrumental means of both are purely the creation of their diseases. These consist of strange substances separated from the blood and deposited upon the pleural surfaces, or the pericardial surfaces, spoiling their natural smoothness and lubricity, interrupting their noiseless play upon each other, and causing them to grate together with a sound. LECT. IV.] AUSCULTATION OF THE IIEAKT. 47 LECTUEE lY. GENERAL ESTIMATE OF THE USES OF AUSCULTATION APPLIED TO THE HEART. What I have laid before you is the alphabet, or at most the spelling-book, without which you will never be able to under- stand the auscultatory language expressive of diseases of the heart. And, until you know it, and know it well, j'^ou must go on blundering and guessing as children do, until they have learnt to read. But to decipher the auscultatory language of diseases of the heart easily and accurately is an affair requiring labour and use and docility. If you find it a hard task, you most not excuse yourselves upon the plea that this, that, and the other man knew nothing about it, and yet they were esteemed wise in their time ; or that many men, who now pass for wise, deride it, or that many, who profess to understand it, make mistakes about it or apply it to no good end. Yet as the ability to read does not make a man literary or learned, but only furnishes him the means, the indispensable means, however, of becoming so, so neither does the skill to decipher the auscultatory language of the heart make him all at once a great pathologist or a good practitioner in respect of its diseases ; but being constantly, soberly, and diligently applied, it furnishes him with much help towards a surer knowledge and a better treatment of them. For auscultation is conversant with principles. And above all things we should covet principles ; for most certainly they do not abound in practical medicine. The records of practical medicine are chiefly made up of the sagacity of this man and the experience of that, of much that has been luckily conceived or cleverly reasoned, and of some things that have been concluded with a fair probability of truth. But in all this sagacity and experience, in all that has been so conceived 48 CLINICAL MEDICINE. [lECT. IV. and reasoned and concluded, there is wanting the test of prin- ciples to tell us how much real truth is contained. JN^ow, as the best men among us have ever felt the want of principles to test the truth both of their own knowledge and that of others, so they have been ever ready to accept them whenever they have appeared. Whenever in medicine any thing like a discovery has been made, any thing which has had the show of a principle or a law, a large surrender of cherished opinions has always followed, and knoAvledge has seemed to begin its career afresh from a new starting place. Mr. Hunter's work on the blood and inflammation abolished half the loiowledge which the world had then to boast on these subjects. It showed that there had never before been any such thing as a pathology of local morbid processes. Abounding in principles, or in the germs of principles, it afforded a point of departure for all future study and observation, to the disregard of abundance of notions, opinions, and reasonings previously accepted and allowed. So in our own times auscultation has been a discovery in th6 art of clinical observation, inasmuch as within a certain sphere it has furnished us with principles really scientific for its use and exercise ; consequently in regard to the diseases of those organs to which auscultation is applicable^ almost all the pre- vious records of clinical medicine have become useless. Our inquiries now begin, and begin with certaint}^ from a new starting point ; a point which, formerly, if they ever reached, they only reached by conjecture. For how then stood our knowledge of diseases of the heart before auscultation came to illustrate them ? Truly by the profession at large they were not much thought of or inquired about until the commencement of the present century. Yet Senac's was a great work, and the Epistles of Morgagni abound in scattered information of great value upon this subject. A good deal was known, but the knowledge was hidden knowledge. It had not reached the general mind. Indeed the heart, in respect of its pathology, seemed to lie out of the high road of popular interest, until Corvisart wrote. The treatise of Corvisart, when I was a student, was in all our hands. And it well deserved to be ; for in it there was knowledge of the best kind displayed in the best manner. Taking what information he thought valuable from the works of LECT. IV.] AUSCULTATION OF THE HEART. 49 others, and blending it with his own special experience, he brought the whole to bear upon the pathology and clinical diagnosis of diseases of the heart. Thus the entire subject may bo said to have been first brought out of obscurity, and first placed fairly Avithin our reach, by the clear and vigorous and methodical and popular manner in which it was handled by the genius of Corvisart. I do not believe it possible that the diagnosis of diseases of the heart could ever have been carried beyond the point to which Corvisart brought it (yet how far was it from certain ?) by anything less than some new discovery in the art of clinical observation. That discovery has been made which we possess in auscul- tation. Thus many forms of structural disorganisation and disease belonging to the heart, which after much time and much calculation of circumstances near and remote, and much cautious reasoning, could heretofore be only plausibly and probably con- jectured during the life of the patient, are now known at once and infallibly attested by the ear. But the ear must be a well-educated and well-practised ear, or it is not a trustworthy witness. Remember this: for the knowledge of the senses is the best knowledge ; but delusions of the senses are the worst delusions. And men are as often deceived by their ears as by their eyes ; and they may hear ghosts as well as see them. But it is needless to dwell upon the indisputable fact, that by the use of a well-discipKned and well-practised ear we arrive at a readier and surer diagnosis of diseases of the heart than by all the other means of inquiry which clinical observation can command. Still we shoidd be careful to form a right estimate of auscultation ; to value it for what it is worth and not for what it is not. There is much indifierent taste and Averse judg- ment in the Avorld, which are apt to applaud in the Avrong place, and so to injure many things really good by their undiscerning patronage of them. Auscultation has suffered in this way from its friends ; and therefore I think it worth while to try and set it right with the world, not concealing its weak points Avhile I endeavour to do justice to its strong ones. I am speaking of auscultation only respective to the heart. The age we live in cannot be better characterised, as to ^the manner in Avhich medicine has been studied and pursued in it, than as the age of morbid anatomy. Almost the only instrument 4 50 CLINICAL MEDICINE. [lECT. IV. of pathological research has been the scalpel. Now, that great good has resulted from morbid anatomy it woidd be unjust to deny. But this good there is a tendency to exaggerate ; and, such as it really is, it has certainly fallen short of what might have been anticipated from the universal study of almost half a century. At length it has now confessedly done its best; and all great improvements in medicine pathologically or practically must henceforth be looked for not from morbid anatomy but from other sources. So far as morbid anatomy contemplates the late or last results of disease which are fixed and irremediable and unalterable, its value is very small. But so far as morbid anatomy contem- plates disease in jjrogress, and scrutinises and explains its organic processes, its value is very great. Now the objects of morbid anatomy are the same with which auscultation is peculiarly conversant in the organs to which it reaches. And auscultation must have its value estimated in proportion to these objects, be it less or be it more. When during life it announces, even with infallible certainty, the late or latest results of disease, now become fixed, irremediable, and unalterable, auscultation is at its lowest estimation. When during life it declares with equal certainty the existence of disease while it is yet active, progressive, and remediable, auscul- tation is at its highest value. Of the diseases of the heart which afiect its structure and are equally the objects of morbid anatomy and of auscultation, the great majority are tardy and secret in their growth, and by the time they are so far developed as to disclose themselves to our clinical research they have already passed beyond the reach of our remedies. They are no sooner known to exist than they are known to be incurable. Already they bear the character of results, not of operations. Atrophy and hypertroj)hy of its muscular substance, and dilatation of its cavities, cartilaginous thickening and ossification of its valves — these are the forms of disease or disorganisation of the heart which crowd upon us in hospitals, and are submitted to us in private,'^ to say what they are, and how to cure them. And indeed by helj) of auscultation we can say what they are, but cure them we cannot. While they reveal themselves almost infallibly to the ear, they are absolutely beyond the reach LECT. IV.] AUSCULTATION OF THE HEART. 51 of any restorative power wliich cither belongs to the body spon- taneously, or is capable of being called into exercise by art. Their clinical diagnosis is indeed wonderfully complete and beautiful ; and the ability of forming it which proceeds from a well instructed ear, would, upon each occasion of its success deserve to claim a sort of triumph, if success were not very common. For a long time, after most physicians of common sense had accepted auscultation, and allowed its use, and most physicians of moderate experience had gained some familiarity with its jjractice, its application to the heart was only known in cases of its fixed, unalterable, and irremediable disorganisations ; and of these it certified the existence, and this was all. But there is nothing so captivating as new knowledge. Even though its subject be incurable diseases, which it renders not a whit the less incurable, still it is captivating. Hence the extraordinary interest with which auscultation invested these incurable diseases ■of the heart, simply by making us sure of their existence. Cases of such diseases always abounded in hospitals. They were essentially difficult cases. Their symptoms were hard to interpret into any definite meaning. They betokened that in some way or other the heart was diseased, and that in some way or other their sure termination was death. Day by day to watch over these cases and to treat them was an irksome duty — it was even a thing to damp the spirits. But auscultation brought to them a new light and a new interest. And then these same became the cases which we were continually busy about, which we were never tired of visiting and examining and ausculting, and of examining and ausculting again and again; and so comparing our clinical observation during life with the disclosures of morbid anatomy after death , we became vain of our often-verified diagnosis. Nay, we were not only captivated with, but we almost made a plaything of, our new knowledge. Every variety of sounds arising from the heart which the ear could catch and dis- criminate acquired a fimciful importance; and attempts were made to signify them by apt similitudes, and even to express them by musical notes. But no man who rightly estimates the ends of knowledge could rest in this and be satisfied ; for this would be to value what he knows, not by its fruits, but by his own satisfaction in knowing it. 52 CLINICAL MEDICINE. [lECT. lY. Thus far then in respect of the heart auscultation had taught us a surer and more exact acquaintance with many diseases which still we could not cure. The physician had become wiser, but the patient had profited little. But there is such a thing as having knowledge in reserve ; such a thing as cherishing and increasing and perfecting it- in hope, and looking patiently forward that the time may come when mankind shall be the better for it. It was in this spirit that the more sober-minded of medical men at first, and for a long time, continued to exercise auscul- tation in its application to the heart. Full of interest about it, they were ever improving their skill in it, and ever learning from it all that it was yet able to teach. But they held their new knowledge not as a boast, but as an encouragement, believing that there was a sealed-up treasure of usefulness within it, which they should one day penetrate and disclose. Yet time went on : and still auscultation only told us of mischief when it was done, not of mischief while it was adoing. Still it found a place only for the remedy which could render what viust be borne more tolerable, not for the remedy which could come in aid of counteraction and reparation and restoration to health. Then, looking upon the purely mechanical nature of the abnormal sounds of the heart, and at the mechanical way in which they are formed, one might be pardoned for beginning to doubt whether they would ever gain a high A-^alue among the signs of diseases whose phenomena are pre-eminently vital ; of diseases, which have pain ' and fever and nervous irritation for their prominent ingredients ; and whether they would ever help us better to understand and better to manage those diseases, which to know early is alone to know profitably, and- to treat early is alone to treat successfully ; whether, in short, they would ever be available for diagnosis and practice in the- acute inflammations of the heart. Again, one might be pardoned for suspecting, from their very nature, that the structural injury of the heart capable of pro- ducing auscultatory signs must be always of large amount, and the growth of long time, and that thus those signs would be- found in the end to annex themselves solely to its chronic diseases. Time still went on ; and those who held the keys of know- LECT. IV.] AUSCULTATION OF THE HEART. 53 ledg-e in this (^roat experiment, tlio physicians of hospitals, and who had the fit objects and opportunities ever at hand for proving and applying this new discovery in the art of clinical observation, were still continually aiming- it, and pointing it at the same mark, viz. at the attainment of a greater practical benefit. And at length the mark has been hit, and the prize has been won. For now there is no truth experimentally more ■certain than this, that auscultatory signs above all others, and oftentimes before all others, and oftentimes in the place of all ■others, may be safely trusted to declare the beginning and the augment, the decline and the cessation of acute inflammation in those structures of the heart, which are especially, if not solely, obnoxious to it ; and that the same signs may be confidently appealed to as guides, by Avhich to choose the remedy, and apportion its quantity and regulate its force, and continue or discontinue its application. A great amount of structural mischief (it appears) is not needed to jDroduce in the heart an unwonted sound. As with the more delicate pieces of machinery the least injury will produce a jar, so with the heart ; and as with them this jar is often the first notice of something wrong, so with the heart ; and as in them the ear will often at once detect whether the fault be of a wheel, of a screw, or a spring, so in the heart it will at once tell whether the disease be of the membrane which invests it without, or the membrane which lines it within. Let it then be borne in mind, that the diseases and disorgani- sations of the heart, which auscultation reveals to us during the life of the patient, are of two classes. The one includes those which are perceptibly progressive from day to day, and in which we contemplate a present moving energy and operation. The other includes those which are stationary, and in which we contemplate a fixed and permanent result. Now it is upon the first class of affections of the heart that I shall principally dwell ; because they are those of which there is a less familiar knowledge in the world, and therefore more need of information, and because from the newness of their matter they have a greater interest ; but above all, because they are really and practically the most important. For the danger to life with which they are charged is great,, and great, too, is the danger of permanent injury to the organ if life be saved; 54 CLINICAL MEDICINE. [lECT. IV. SO that all the extreme vig'ilaiice of time and opportunity which we can bestow^ and many of the most powerful remedies which, ■medicine can furnish, are needed to save life and to save the organ. Besides, these are the affections of the heart which more than others seem to belong to it as its own by a strict and peculiar, though not quite exclusive, appropriation. For in them, except where it is occasionally shared by the lungs, the whole force of morbid action is expended upon the heart. In. them, except where the mischief occasionally reaches the lungs also, life is perilled or destroyed by the magnitude of the injury done to the heart ; and in them, except where some part of it is occasionally called for by the lungs, the entire strength of the remedy is brought to bear directly upon the heart ; well therefore may they demand the most careful inquiry which we can give them. Upon the second class of affections of the heart, those which are secret and chronic in their growth and unalterable and irremediable in their nature, I shall content myself with a more general commentary. Indeed, for the sake of practical utility, this part of the subject needs rather to be comj^ressed than enlarged. It is difficult to say what is its natural limit : it runs out into so many subjects beyond itself, that if they were all pursued they would lead us a ramble over the whole field of pathology and practice. After auscultation has taught all that can be learnt concern- ing these affections as inherent in the heart, their exact seat, and the exact nature of the mechanical change of structure in which they consist, there is an end of all our concern with them. as such. JSTo treatment follows. The injury done cannot be undone. We have most probably made a correct diagnosis. It is a poor boast indeed ; but it would be hard to grudge us the little satisfaction (it is all we claim) of having done so. Whatever objects of further interest belong in any way to these cases, whatever objects of medical treatment there are in. any way connected with them, must be sought and found out of the heart itself and beyond it. But in most of these cases it is not what we hear with our ears, it is not the injury suffered by the heart that directly kills. Doubtless, if we could remove it^ the patient would be well ; but though we cannot remove it,, much more must be added to it before he dies. For out of it LECT. IV.] AUSCULTATION OF THE HEART. 55 is apt to spring every kind of disease wliich can be formed by blood and blood-vessels in all parts of the body; congestions and effusions, hemorrhages and inflammations, cerebral or pul- monary, renal or hepatic. These constitute diseases of various character and various name, according to the organ or the function which they damage or destroy. Now it is of some of these that the man whose heart-disease is of chronic growth commonly dies ; and these are the objects of medical treatment — objects for anticipation, for postponement, for mitigation, and for temporary cure. Concerning auscultation, then, in its application to the heart, our inquiry hitherto has embraced the nature of its signs and symbols, and what they are in themselves, and how they are formed, and what they directly indicate ; also the certainty of their use in the discovery of diseases of this organ during life, and the extent to which clinical observation has profited by them, and wherein, according to our present knowledge, consists their greatest practical value, and wherein their least. We will now j)roceed to pursue the subject in its practical details, when much of what I have stated generally will be more clearly seen and acloiowledged ; this indeed, and much besides, which cannot in this place be intelligibly explained, viz. that auscultation has actually disclosed to our knowledge by far the most important portion of the entire pathology of the heart. Before I enter into these details, I wish to say a few words, by way of excusing myself to those who may find fault with me for many omissions, and altogether far too much conciseness in. handling so large a subject as diseases of the heart. There are subjects in medicine about which the information of various kinds to be found in books is enormous ; and if you would learn all about them that is known or surmised, all that is settled or is yet in controversy, you must go throvigh abundance of reading, and have abundance of leisure, that so by thought and meditation you may make all that you read your own. But many of these subjects are practical subjects. Yet, extensive and difficult as they are, there are men whom duty and conscience require to have such a knowledge of them as they can use readily and profitably every day of their lives ; and such a knowledge, doubtless, many do possess ; and surely, you may fancy, this must be a perfect knowledge ; but perfect, as 56 CLINICAL MEDICINE. [lECT. IV. including every thing that belongs to the subject, it certainly is not, perfect in its uses it may be. The truth is, the knowledge which rules and regulates practice, and which best insures its success, is commonly a selected knowledge. It is also a knowledge which is compressed and compendious in its form and compass, and so always manage- able and always ready for using, and made to him who holds it surer and surer by daily trial and experiment. Now upon the subject of the heart and its diseases, what knowledge I have to impart to you must be a selected knowledge ; for passing by what to me, at least, is less certain and less stable, I shall be content to dwell upon what from experience is best understood by myself, and is likely to be most useful to you. Here is a great hospital ; and here I hold that all teaching by lectures should have for its first and principal purpose to give effect to that self-teaching, which, from the objects which sur- round us, all may practise and profit by who have eyes and ears and a docile mind. Do not believe a word that I say until you have gone into the wards and proved it. There you will find your great book of instruction. I onlj^ pretend to su23ply a key, a glossar}', or an index to it. Use that book as jow. ought, and then, though in the end you and I may have the same knowledge, it will not be because it has passed from my mind to yours, but, being gained by your own observation, ratified by 3'our own proofs, and matured by your own thought, you will have it and hold it as your own independent possession. LECT. v.] ENDOCARDITIS. • 57 LECTURE Y. INFLAMMATION OF THE HEART. ENDOCARDITIS AND TERICAR- DITIS. THE ENDOCARDIAL AND EXOCARDIAL MURMURS THEIR CHIEF DIAGNOSTIC SIGNS. HOW THEY BECOME SUCH. THE ENDOCARDIAL MURMUR, THOUGH FOUND IN NUMEROUS OTHER DISEASES OF THE HEART, YET CONDITIONALLY THE SURE SIGN OF ENDOCARDITIS. THE CLINICAL KNOWLEDGE OF ENDOCARDITIS A NEW KNOWLEDGE. ITS CONNECTION WITH ACUTE RHEUMATISM. HOW IT CAME TO BE DIS- TINGUISHED, DURING LIFE, FROM FERICARDITIS. We proceed next to consider the diseases of the heart clinically ; and, first, its inflammations. These, as far as we know, have their local origin and seat almost exclusively in the endocardial and pericardial membranes. Now the entire clinical history of endocarditis, or pericar- ditis, viewed in all its details, is a very large and a very intricate subject ; too large and too intricate to be made intelligible, unless it can be greatlj" abridged and simplified. But how to abridge and simplify it, and yet do neither wrong nor prejudice to any substantial truth, is a difficult matter. For this purpose I shall set up one pre-eminent sign for each disease, and direct my course by it. And thus the clinical history which I shall give of each will be little more than a commentary upon its one pre-eminent sign, and the time and conditions of its appearing, continuing, and ceasing ; while I shall regard other signs, many or few, constant or occasional, coming or going, as subordinate to it. The pre-eminent sign of endocarditis is the endocardial murmur, and of pericarditis the exccardial. But a clear notion must be had how they become such before we advance a step further. The abnormal sounds or murmurs of the heart in their 58 CLINICAL MEDICINE. [lECT. V. primary signification are, for the most part, tlie immediate result of causes merely mechanical, the jarring and creaking and grating of a piece of machinery that is out of order ; and in learning whence and how they are produced, we learn at the same time what part of the machinery it is that has suffered injury. But it is a vital piece of machinery this with which we have to do ; and the injury that makes it jar and creak and grate is the product of vital processes, of an unhealthy kind, which are, or have been, at work within it. Thus, in learning the mechanism of the heart's abnormal sounds we learn some- thing of its diseases — we learn their seat. This is the first piece of knowledge that comes to us from the study of the heart's abnormal sounds, the diagnosis of the heart's diseases in respect of their seat ; and from the study ol them and them alone this diagnosis may reach an extraordinary accuracy. Yet still it is a diagnosis only of their seat ; and to rate it at any high value would be ridiculous^ if it led to nothing beyond itself. But besides the seat of its disease, there is their nature, their origin, their progress, their events, their treatment to be inquired into. These are great heights of knowledge, and we must in some way contrive to reach them. Yet how can the theory of its abnormal sounds, when best understood, possibly help us? At first sight it appears as the lowest round of a ladder, the step just off the ground, upon Avhich, when a man has duly secured his footing, he seems at a disheartening dis- tance from the top. Weil, then, how comes the endocardial murmur to be the pre-eminent sign of endocarditis, and the exocardial of peri- carditis, for neither one nor the other has an}- thing to do with inflammation in its essence, or with the vital inflammatory process as such? They have only to do with the products of inflammation and the peculiar mechanical effects resulting from them in the situations where they are now found. Thus they become diagnostic of inflammation, not absolutely, but con- currently with other signs and with certain joresent states and conditions of the constitution at large. The endocardium becomes rough and rugged from various causes, and from inflammation among the rest ; and the j)eri- cardium becomes rough and rugged from inflammation, and LECT. v.] ENDOCARDITIS. 59 scarcely (us far as I know) from any (;aiisc beside. Bui, from Avliatever cause tliey become such, the endocardial murmur will luive the same character in one case, and the cxocardial the same character in the other. For in both cases the murmurs alone testify to the rough and rugged surface, and nothing- more. But then the whole constitution is in a state of fever, and when the present disease, which it suffers, is such as has endocarditis or pericarditis for its frequent accompaniment, then should either of the murmurs, not heard before, all at once arise, it would proclaim inflammation of that membrane, to which it j)ointed, without a doubt. Thus, though the murmur alone would not mean endo- carditis or pericarditis, yet all other symptoms put together would not be enough to make us sure of either one or the other ■irltJiout the murmur. But n-ith the murmur a "very few are sufficient to stamp the certainty of cither. Bearing these considerations in mind, we are prepared to enter upon the clinical history of these two inflammations with these two murmurs for our guide. We will take endocarditis first. ( )f all auscultatory signs belonging to the heart, the endo- cardial murmur occurs the oftenest, and includes the most. It may result from any kind of injury sustained by the internal lining or valvular structure of the heart, which can raise an impediment to the passage of blood. It may result from any kind of force, within the body or without the body, yet exterior to the heart, which is so brought to bear upon it as to compress its cavities. Such are spinal curvatures and foreign growths within the chest ; and such is any thing of Aveight, or bulk, or active power, applied upon the prtccordial region, sufficient ta cause the sternum or the ribs to yield. And it may result from the altered quality of the blood, from anaemia. Now there are always within the hospital numerous ex- amples of the endocardial murmur. Perhaps at this moment you might here find cases showing severally each of the speci- fied modes in which it is capable of being produced. SucK ready opportunities of comparing and contrasting things appa- rently the same, and so arriving more surely at the truth, may not always be within your reach. Therefore you should make the best of them while they are so. In studying these cases you must not expect to find the 60 CLINICAL 3IEDICINE. [lECT. V. endocardial murmur its own sufficient interpreter. From simply listening to the murmur, and asking no questions, you will not be able to tell what it means. In the man, who a few days ago was seized with fever, being then in perfect health, it means one thing; in the man, who has been out of health for years and has been long suffering dj^spnoea and palpitation, it means another; in the man deformed from his birth, another; and in the pale chlorotic girl, with the feeble, frequent, jerking pulse, it means another. Yet it is the same kind of murmur, the murmur simidating the sound of bellows, in all; and being the same, it cannot entirely explain itself — it cannot be its own interpreter. It requires aid from concomitant circumstances to decide its meaning in each particular case. The aid it needs is often very little ; but that little it must have, and then it teUs its story clearly and explicitly. Should it happen, when great heat and nervous excitement had been newly developed throughout the bod}^ and when actual inflammation had recently become visible on external parts; should it happen that the endocardial murmur, well known never to have been present before, then arose for the first time; assuredly it would at once fix the seat of disease in the endocardium, and determine that disease to be recent and acute inflammation. Though there might yet be no pain, no palpita- tion, no direct symptom whatever referrible to the heart but the endocardial murmur alone, yet it alone wouldbe enough to fix the seat, and, imder the circumstances, the nature of the disease. Truth in all its kinds is most difl[icidt to win ; and truth in medicine is the most difiicult of all. And here is the proof of it. This acute inflammation of the endocardium, this endocar- ditis, has been (I will not say) altogether unknown to me, but unknown in its real extent and frequency during two-thirds of my professional life. Morbid Anatomy had sought for it, but had sought at random, and so had only found it once or twice by chance. It had put a few cases upon record, showing that such and such were the appearances which characterised this rare disease, when it happened to occur. And clinical observation was equally in the dark : it had stumbled upon it now and then by accident ; but when or where to look for it, or by what signs to recognise it, it could not tell. LFXT. v.] ENDOCARDITIS. 61 JS^ow clinical observation, tliougli never blind, was, until lately, always deaf. Yet there were always many diseases which during the life of the patient spoke only to the ear. These could never have been known, or could only have been guessed at, until clinical observation learnt the use and exercise of that sense by which alone they are discerned. Hence Auscultation has had the effect of making it appear that rare diseases have all at once become strangely multiplied, whereas it has only disclosed what was before hidden, and made that the subject of sure diagnosis which was before hit upon by chance. Endocarditis is one of those apparently new diseases ; and it will be interestin"- to trace in what manner our knowled^'o and sure diagnosis of it is due to Auscultation. Endocarditis is at present chiefly known as a concomitant of Acute Ilheumatism. In the year 1826 I was the first to teach the students of this hospital the fact, that whenever the heart was affected in acute rheumatism, a sound different from the sound of health always accompanied its contraction. This was then a new fact, and one of immense importance ; and all succeeding observation has gone to confirm its truth. This sound in the vast majority of instances was the bellows' murmur. I must not call it endocardial, for it was not yet known to be so. But in some, instead of the bellows' murmur, it was some strange sound difficult to describe; and in others this strange indescribable sound and the bellows' murmur seemed to occur together: there was a mixture of both. My notion then was, that all these sounds arose in some way or other out of inflammation of the pericardium ; and taking them all, severally and in combination, as the signs of pericar- ditis, I was amazed to find how far the frequency of its occur- rence in acute rheumatism exceeded the common calculation. and belief. In process of time I found, upon a comparison of cases,, that where in acute rheumatism the bellows' murmur occurred alone, the affection of the heart was upon the whole far less severe and far less perilous to life, than where some other unnatural sound occurred alone or in combination with it. I observed, too, that in some cases where the bellows' murmur was 62 CLINICAL MEDICINE. LECT. V. unequivocal, the patient betrayed no uneasiness, no palpitation, in short, no other symptom which could give the least suspicion of a diseased heart ; yet that in the great majority of instances where it once existed it remained permanent as long as the patient continued under my care and observation. At length I began to doubt whether the bellows' murmur arising in the course of acute rheumatism was really derived from the pericardium, and to suspect that it proceeded from the internal lining. But for years the practice of this great hos- pital did not afford me a single opjDortimity of resolving my doubt, or of confirming my conjecture. For of that disease of the heart, which, coming on during acute rheumatism, is characterised by the bellows' murmur, no patient of mine ever died, and I could learn nothing about it from dissection. But what my own experience would not furnish, M. Bouillaud's has supplied. Many have died during the active progress of this disease imder his care, and dissection has found it to be inflammation of the endocardium. Thus we are indebted to M. Bouillaud for our first knowledge of this important fact. Nearly about the same time Dr. "Watson and Dr. Stokes, of Dublin, further illustrated this important subject by separating those of her sounds of the heart, which I have mentioned to occur in acute rheumatism, from the bellows' murmur, and analysing them apart. These they found to possess the character of attri- tion, as if produced by surfaces moving to and fro upon each other, and traced them home to their local origin in the peri- cardium, and showed the condition of their production to be a defective lubricity, or a ruggedness and unevenness of that membrane, such as would result from inflammation. In short, they showed these to be the proper signs of pericarditis, as the bellows' murmur is of endocarditis ; that, when in acute rheuma- tism either occurs alone (as it often does), the disease is simple pericarditis, or simple endocarditis ; and that when in acute rheumatism both occur together (as they often do), there is a mixture of the two diseases in the same subject. The bellows' murmur coming on in the course of acute rheumatism is a sure sign of inflammation of the endocardium. Here, then, we will drop this exceedingly vulgar name, and call it " endocardial" again. But observe, it is the general character of the morbid actions predominant in the system at large which LECT. v.] ENDOCARDITIS. 63 determines the pcarticular character of the local disease out of which the endocardial murmur arises. They are inflammatory, and it is inflammation. In endocarditis, besides the endocardial murmur, there may be other symptoms present directly refcrrible to the heart, or there may not. There may or may not be pain. There may or may not be an excessive impulse, or an intermittent, irregu- lar, or fluttering action of the heart. But the fact of endocarditis is not rendered more or less certain by their presence or absence. There may be both pain and palpitation ; yet endocarditis cannot be surely inferred to exist, unless there be the endocar- dial murmur withal.* There may be neither pain nor palpitation, yet endocarditis cannot be inferred not to exist, if the endocardial murmur alone be present. Seeing, then, that the endocardial murmur alone can deter- mine the existence of endocarditis, you are required to search after it in every case of acute rheumatism. I say emphatically to search after it, because it is one of those signs which must always be sought before it can be found. It does not intrude itself upon our notice like palpitation, or an irregular pulse. The patient does not draw our attention to it as he does to pain. The physician must make it out entirely for himself. And indeed it is infinitely important that he shoidd have the earliest possible notice of it with a view to the earliest possible applica- tion of the remedy. Never omit, therefore, to listen to the pra^cordial region when- ever you visit a case of acute rheumatism, and visit a case of acute rheumatism oftener perhaps than you otherwise would do merely for the sake of so listening. All may seem to be going on well. The general symptoms may be far from severe. The chest may be free from pain. The heart's action may not awaken suspicion by its force or irregularity. Nevertheless, its internal lining may be inflamed, and, if you listen, the endocardial murmur may convey the momentous fact directly to your ear. * I do not say that it would not be fairly suspected, and that it would, not Le right to act as decidedly upon the suspicion in such a case as upon the matter of fact. It certainly would. 64 CLINICAL MEDICINE. [lECT. VI. LECTURE YI. ENDOCARDITIS CONTINUED. — ITS GENERAL DESCRIPTION LESS USEFUL THAN A CLINICAL COMMENTARY UPON ITS INDIVIDUAL SYMPT0:MS. THE ENDOCARDIAL MURMUR, IN ENDOCARDITIS, IS SOMETi:\IES PRECEDED BY A CERTAIN ROUGHNESS OR PROLONGA- TION OF THE heart's NATURAL SOUNDS. OFTEN IT ARISES ABRUPTLY. SEAT AND DIRECTIONS OF THE MURMUR. ITS ACCOMPANIMENTS, PAIN, ABNORMAL IMPULSES, AND ACTIONS OF THE HEART. THEIR PRACTICAL VALUE, AS SYMPTOMS, ACCORDING TO THEIR DEGREE, AND ACCORDING TO THE DIF- FERENT RELATION WHICH THE ENDOCARDIAL MURMUR BEARS- TO THEM IN DIFFERENT CASES. THEIR DIVERSITIES OF RELA- TION CONTAIN INTIMATIONS RESPECTING THE STAGES AND PROGRESS OF THE DISEASE. THE SAME CONFIRMED BY THE SUCCESS AND FAILURE OF REMEDIES. THEIR PRACTICAL IMPORTANCE. Endocarditis is one of tliose diseases wliicli do not admit of general description. For what is meant by the general descrip- tion of any disease ? It is the display of its symptoms collec- tively, sometimes by strictly copying after nature, and some- times using so much of artificial arrangement, as, while it goes neither beyond nor contrary to nature, may serve to make the Yv'hole more intelligible. Some such descriptions, when they have conveyed the truth with great force and faithfulness, have been regarded with the same sort of pleasure with which we look upon a well- drawn picture. But, after all, they are more pleasing than profitable. Perfection in this kind was reached ages ago, yet we go on describing what has been better described before, and are venturing with rash hands still to retouch the masterpieces of Areta3us. But of those diseases, which have been the most perfectly described, we have not the most perfect knowledge. The LKCT. VI.] ENDOCAKDITIS. 65 physician's knowledf^e can then only be called pej'fect, wlien outward signs make him sure of what is going on within, and offer some plain and indubitable mark for the direction of his remedy. This knowledge, however, does not come from dwelling with satisfaction upon graphic pictures of diseases, nor from socking to take in all their symptoms, and viewing them at large, but from meditating on the meaning that is wa-apt up in a few. What remains for me to say of endocarditis will be in the way rather of clinical commentary than description. I shall take its auscultatory symptom, and a few symptoms beside, and comment upon them, almost one by one, and show what is the value that belongs to each in teaching us the realities of the disease and the use of remedies. Whenever, then, those conditions of disease arise which are apt to involve the heart, i.e. in all cases of acute rheumatism especially, listen to its sounds, and note in them the least change from what is natural. There may be yet no endocardial murmur. But its systolic sound may be unnaturally prolonged, or it may be unnaturally rough. Now I hardly ever knew an instance of acute rheumatism in which such unnatural length or roughness of sound, as a practised ear could well discriminate and detect, has not become an unequivocal endocardial murmur in twenty-four hours. Those who have been accustomed to attend me in my visits to the wards of the hospital, know how often and how truly from these peculiarities in the sounds of the heart, which I have noticed for the first time to-day, I have anticij)ated that the murmur would be fully formed to-morrow. Experience indeed has taught me to regard them as its almost certain preludes; and thus, under the circumstances, they have become to me almost as certain signs of endocarditis as the endocardial murmur itself. I no sooner jaerceive them than, without waiting for the murmur, I begin the treatment of endocarditis at once. It happens commonly, however, that the natural sound of the heart is changed into the genuine endocardial murmur, without notice or prelude. Now the murmur may be heard at the apex chiefly, or at the basis chiefly, or in both situations equally. It may, moreover, be heard in the course of the aorta 5 66 CLINICAL MEDICINE. [lECT. VI. and of the carotid arteries ; or in the course of the pulmonary artery, and not in the aorta, or in both simultaneously ; thus denoting that the seat of the inflammation may be either in the auriculo-ventricular valves or in the semilunar valves ; either on the left side of the heart or on the right, or on both sides at the same time. It has been already said that the murmur being coincident with inflammatory actions in the constitution at large, deter- mines the disease of the endocardium to be inflammation, and that standing alone, and being the only sign directly referable to the heart, it determines the fact as surely as it would in com- pany with a dozen other signs immediately pointing to the same organ. And in truth it sometimes does stand alone, and to it alone you must needs trust ; and you may trust implicitly. Often, however, it does not stand alone. Other symptoms directly referrible to the organ are superadded; pain and anguish of various degrees and kinds, excessive impulse, inter- mittent, irregular, faltering, fluttering action of the heart. Now are these symptoms to be altogether rejected and passed by ? Have they nothing whatever to teach in this matter, after the endocardial murmur has already taught what the disease essentially is? On the contrary, they have a great deal to teach, and therefore they are to be highly prized and made much of. In every disease seek to come at the purely diagnostic symptoms if you can, and put a high value upon them. But do not imagine that other symptoms have no value at all. You learn the disease in its essence and seat from its diagnostic symptoms. But other symptoms commonly tell you of its mag- nitude, and of its probable event ; other symptoms sometimes become the guide of its treatment. The endocardial murmur fixes the seat of the disease without a doubt, and conditionally determines its nature. But we gain a surer measure of its degree, and of the peril involved in it, from the pain and anguish referred to the heart, and from its disturbed and embarrassed actions. When pain is present, the time of its first occurrence varies much in difierent cases. In acute rheumatism I have known patients, when questioned, admit that they sufiered pain, or make voluntary complaint of it unasked (pain produced or augmented by inspiration, pain produced or augmented by LECT. VI.] ENDOCARDITIS. 67 pressure), in the praccordial region, while yet the ear has detected no sound of the heart which determined the seat or nature of the disease. And such pain I have known to cease altogether, without being followed by the auscultatory signs of either of those diseases of the heart which so frequently accompany acute rheumatism, endocarditis, or pericarditis. But from such pain experience would lead me to anticipate that the auscultatory signs of one or the other would quickly follow ; and prudence would lead me at once to begin the treatment of the anticipated disease. I have mentioned a certain length and roughness of sound to which my ear is accustomed, as a frequent prelude to the endocardial murmur of endocarditis. Praecordial pain may be added to this length and roughness of sound ; and, when it is, the murmur is so sure to follow, that it would be folly to delay the treatment of the disease until it arrives. PraBcordial pain occurring thus early, and after the manner specified, may serve at least as a salutary warning of what we are to expect and to be prepared for. And salutary, indeed (I am persuaded), it has sometimes been, when it has led us to act upon a strong anticipation of the disease instead of waiting for the authentic sign of its actual existence. For thus, if we have begun the treatment only a single day sooner than we otherwise should have done, we may have perfectly cured the disease which, but for the gain of this single day, would never have been more than half cured. The gain of a single day in the treatment of endocarditis is a gain indeed ! But the praecordial pain may not arise until the endocardial murmur has already informed us what disease we have to deal with, and we have already taken our measures for its cure. From the prajcordial pain thus occurring, I do not see what new suggestions of treatment can be gained. But many new suggestions may be gained from it (as I have already intimated), according to its degree and its kind, respecting the disease itself and the peril which it involves. In endocarditis some patients say nothing of any pain they suffer until they are asked about it, and others complain of it unasked ; while there is nothing in the countenances of either that tells you that they are suffering pain. Pain of this amount need not disturb your calculation of the result. 68 CLINICAL MEDICINE. [lECT. VI. Others at once betray their pain by the countenance ; and being questioned about it, will speak of an indescribable anguish, which they refer to the praecordial region. This is its centre, and hence it radiates ; but it has taken possession of the whole nervous system. Now pain or anguish of this kind (call it what you will) deserves to be taken into serious account. It denotes that the disease has already got the springs of life within its grasp, and that going on to increase it must kill. Just as the pain, when it is superadded to the murmur in endocarditis, gives intimations of a more or less formidable disease, so do the actions of the heart in like manner, according to the degree in which they are baffled or disturbed. Some excess of the heart's impulse is a very common symptom of endocarditis. It often precedes the murmur in point of time, and often it rises simultaneously with it, and no sooner do you hear the one than you feel the other. It is apt to occur very early. Not so common as excess of impulse, but still not an unfre- quent symptom of endocarditis ; not always so very early, but still not a late symptom of endocarditis, is an intermittent action of the heart. I think where the intermittent action occurs, it will be found generally, perhaps always, to follow an excess of impulse ; and then both will exist together in the same case. But neither from mere excess of impulse, nor from the intermittent action of the heart, if the intermissions be not frequent, need any great apprehension arise. With the advantage of early treatment, the intermittent action commonly soon subsides, and the excess of impulse not so soon, but not long afterwards, leaving the murmur alone. Upon these symptoms, however, while they remain, attention must be always steadily fixed. For, if the case have not the benefit of early and efficient treatment, or be in its own nature intractable, they are changed into disordered actions of another kind, and of formidable import : the excess of impulse passing into extreme feebleness of contraction ; and the rare intermissions into small, unequal, irregular flutterings. By the time the movements of the heart are brought to this condition, that dreadful pra3cordial anguish, which has been described, has already appeared ; and presently the whole LECT. VI.] ENDOCAEDITIS. 69 vascular system, and the whole nervous system, and every organ and every function which supports life, are baffled and overwhelmed. Then come orthopna-a, and lividity, . and threatened suffocation, and impossibility of sleep, and collapsed features, and jactitation, and delirium, and death. In this manner may endocarditis, announced and specially characterised by the endocardial murmur, and marked in its progress by one bad symptom after another, run on rapidly to a fatal termination. But hitherto, with all the experience of the disease which this hospital has afforded me during sixteen years and more, I have never witnessed it end thus. But I believe such an event may and does happen, upon the credit of those who have witnessed it. And I believe it the more, from having myself occasionally seen a state of things which manifestly tended towards it, but which never reached it, yet which served to show me how possible it woidd be for endocarditis to be fatal in its acute stage. Therefore, in every case, as soon as the murmur announces that the endocardium is inflamed, I consider that I have surely a serious, and ipossibly a fatal, disease to deal with ; and I employ without delay the remedies upon which experience has taught me to rely for arresting its progress. Nay, more, so important do I consider the gain of time in the treatment of endocarditis, that (as I have already said) I deem myself justified in acting upon a strong expectancy of the disease, before the murmur has yet unequivocally de- clared it. The diversities of relation which the endocardial murmur is found to bear to other symptoms belonging to the heart in various cases, are well worth a little farther notice and con- sideration. For from remarking these diversities, and calcu- lating together with them the success or failure of remedies, according to the time and conditions of their application, I am led to conclude that the endocardial murmur also bears, in different cases, a different relation to the actual stages and progress of the disease itself — a fact which, if it be true, must have important practical bearings. I believe then, 1st, that in some cases of endocarditis the murmur is coincident in point of time with the very commence- ment of the inflammation ; 2ndly, that in some, and those the 70 CLINICAL MEDICINE. [lECT. VI. most frequent, cases it does not arise until the inflammation has somewhat advanced; 3rdly, that in some, and those the least frequent cases, it does not arise until the inflammation is on the decline, or has actually ceased. 1st. The coincidence of the murmur with the commence- ment of the inflammation seems tlius denoted. Upon a review of cases, I find that it was often the first symptom detected. The patients had hitherto suffered no pain or uneasiness of the pra;cordial region, no palpitation, no dyspnoea. But the murmur being once heard, pain, palpitation, and dyspnoea, one or all of them, quickly followed. Here then, if ever, the murmur marks the beginning of the disease; since, if the disease existed prior to the murmur, it must have existed for a time without any symptom at all. The fact is rendered more probable from these further con- siderations. It was in these cases that medical treatment, promptly applied, was often successful; and it was in these cases, more frequently than in any other, that the murmur altogether ceased under the use of remedies, and so afibrded the best evidence we can have of a perfect cure. 2ndly. The postponement of the murmur to a somewhat more advanced stage of the inflammation seems denoted thus. Upon a review of cases, I find that in the majority of them the murmur was preceded by other symptoms more or less referable to the heart — such as pain or anguish, palpitation or dyspnoea; and that an interval of from one day to a week was apt to elapse between the first appearance of such symptoms and the subsequent accession of the murmur. Now, although the symptoms enumerated could only direct suspicion to the heart, and had they passed away without any accession of the murmur, it must have remained doubtful in what manner the heart had been afiected, or whether it had been afiected at all, yet the murmur, when it at length arrived, became the sure interpreter of all that preceded it. It declared the other symptoms to proceed from the same disease as itself, — viz. endocarditis; and that this disease had existed as long as they had existed, and for some time before it became audible. The efiects of remedies in these cases, both by their success and their failure, pointed distinctly to the same conclusion. LECT. Vr.] ENDOCARDITIS. ' 71 There were among- tlieni examples of perfect cure; these were the cases in which the murmur was preluded for a day or two by prcecordial pain, palpitation, and dyspnoea comincj on ichile the imticnU were already under medical observation. These, as soon as they appeared, served as signals to direct the remedies to the heart. Thus the treatment of the endocarditis was instituted in anticipation of the disease, before its authentic sign had yet arisen and determined its undoubted character I say, in anticipation of the disease — I ought rather to say in anticipation of our own certain knowledge of it; for the murmur after the lapse of a few days arose, and thus distinctly marked the nature and seat of the disease. But in a few days it ceased, and thus distinctly marked the perfection of the cure. Again, among the cases belonging to this class there were many of imperfect cure. These were those in which the murmur was preluded for a longer time by proecordial pain, pal^jitation, and dyspnoea, which came on he/ore the patients iccre yet under medical observation. It was not uncommon to find in the subjects of acute rheumatism that proccordial pains and jialpitations had existed for two or three days before their admission into the hospital, and yet there was no murmur ; and that these pra:cordial pains and palpitation would still continue for two or three days after their admission, ere any audible roughness or murmur was detected. Here the treatment was instituted at the earliest period possible under the circum- stances, and was still beforehand with our knoiclcdge of the disease; but it v/as too late for the disease itself. At length the murmur arose, showing Avhat all the previous sjanptoms meant, and declaring the disease, both what it was and where it was, and sanctioning its conjectural treatment. But having arisen, it never ceased, and thus distinctly marked the imperfection of the cure. These facts hardly leave it doubtful, that endocarditis and .all its essential morbid processes, as well as the opportunity of its treatment, are often comprised within a period prior to any audible murmur ; that even within this period the disease begins and advances, and often proceeds so far as to do an irreparable injury to the endocardium; and that within this period the opportunity of its treatment must be promptly seized to be successful, and that, if tardily used it, will even then fail. 72 CLINICAL MEDICINE. [lECT. VI. 3dly. That sometimes the murmur does not arise until the inflammation is on the decline, or has actually ceased, seems very probable from the folloAving considerations. There were ii few well-watched cases in which this happened. During the progress of the rheumatic fever and the patient's confinement to bod, no murmur was audible ; but when the fever and the rheu- matism had ceased, and the patient had loft his bed and was walking about the ward, and was already deemed convalescent, then the murmur was for the first time audible. In these cases, any previous symptoms whicli could intimate a possible suspicion of the heart being affected were very slight, and had yielded to slight remedies, or no such symptoms were either noticed or treated at all. The endocardial murmur arising under these circumstances was unchanged by medical treatment. It remained as long as the patients continued under observation. The inference from such an event is clearly this, — that an inflammation of the endocardium had accomi3anied the rheumatic fever ; that this inflammation was of small activity, and insufla- cient during its progress to interfere with the natural sensations and movements and sounds of the heart, but enough in the end to produce by its effects some permanent inequality on the surface of a valve, and a permanent murmur as the sign of it. Now, if the foregoing facts be true, and the conclusions from them be just, they will help us greatly in estimating the real value of the murmiir as a sign diagnostic of inflammation of the endocardium, and as a guide for its treatment. And its value must vary exceedingly in both respects, ac- cording to the period of the inflammation at which it becomes audible. When the murmur is itself the first s}Tnj)tom, or among the first symptoms, of endocarditis, then it has its highest jDossible value both for diagnosis and treatment. It makes us sure of the disease as soon as it begins to exist, it makes us bestir ourselves for its cure when it is most within reach of a remedy. But when the murmur is not audible until the endocarditis is considerably advanced, and until it has already been preceded for some days by other symptoms, doubtless it is still diagnostic of the disease, and is still a guide to its treatment ; but its practical value in the individual case is diminished. For now,, did we wait for the murmur to tell us what the disease is and L^CT. VI.] ENDOCARDITIS. 73 Low to treat it, it would inform us indeed at last witli more certainty than any other sign ; but we should come in with our knowledge and with our remedies when they were too late. But we do not wait. Our experience of the frequency with which the murmur follows such and such .symptoms referable to the heart, arising in the course of acute rheumatism, makes us regard them as its sure precursors, and makes us act as if it were already present, and begin the treatment of endocarditis while it is yet not quite certain whether the disease be endocar- ditis or no. Here the value of the murmur is indeed very great, in a certain point of view. Its value is not shown by the use we make of it for the diagnosis and the treatment of the very case in which it occurs, but by the use we make of our foregone experience of it in other cases, which we are now turn- ing to such eminent profit in this. The murmur, when it at length arises in the individual case, only serves to show, that the conjecture which we formed from the more equivocal symptoms, concerning the existence of endocarditis, was right, and that the treatment instituted upon that conjecture was right also. Further, when the murmur is not audible until the endocar- ditis is on the decline or has actually ceased, it is of no use whatever, either for the diagnosis or treatment of the disease as an inflammation. The inflammation is gone by, and the murmur denoted nothing about it during its j)rogress. But it is diag- nostic of its efiects, which remain and are permanent. What- ever use and interest it now may have, they belong to it as marldng the commencement of a series of pathological changes which are yet to come. For it ascertains beyond a doubt the time, and the nature, and the seat of the first rudiment of dis- organisation, which will in the end probably involve the whole heart. CLINICAL MEDICINE. [lECT. VII. LECTUEE VII. PERICARDITIS. — THE EXOCARDIAL MURMUR ITS PRE-EMINENT SIGN. — AN IMPERFECT MURMUR SOMETIMES PRECEDES THE TRUE. IN PERICARDITIS, AS IN PLEURISY, ANOTHER AUSCUL- TATORY SIGN BESIDE THE MUR:MUR, DULNESS TO PERCUSSION. THEIR RELATION TO EACH OTHER NOT EXACTLY THE SAME IN THE TWO DISEASES. IN PERICARDITIS OTHER SIGNS IMMEDIATELY REFERABLE TO THE HEART, BESIDES THE AUSCULTATORY : VIBRATIONS SENSIBLE TO THE TOUCH, UNDU- LATIONS TO THE EYE. OTHER SYMPTOMS OF PERICARDITIS. THEIR RELATION TO ITS AUSCULTATORY SIGNS. FROM THESE OTHER SYMPTOMS, AND CHIEFLY FROM ITS KNOWN CONNECTION WITH ACUTE RHET:MATISM, PERICARDITIS OFTEN RIGHTLY PRESUMED TO EXIST, AND OFTEN SUCCESSFULLY TREATED ; YET OFTEN OVERLOOKED, AND OFTEN TREATED TOO LATE, AND OFTEN FATAL, FOR WANT OF THE AUSCULTATORY SIGNS. Before the exocardial murmur was made out and verified, and clearly discriminated from aU other signs referable to the heart, there was no certain diagnosis of inflammation of the jDericar- dium. The subject is one in which I had myself taken a peculiar interest, and had done my best to gain accurate in- formation. But I am now fully aware, that, for a series of vears, half the cases at least which I regarded as inflammation of the pericardium were in fact inflammation of the internal lining. Surely a lasting debt of gratitude is due from mankind to those who shall discover an unerring sign of any disease. The more so, if the disease be of a formidable nature. The more so still, if the sign declare the disease early enough to bring our knowledge of its existence fairly within the period that will allow it to be successfully treated by medicine. All this may be confidently predicated of the sign in question and of the disease it indicates — of the exocardial murmur and inflammation LECT. VII.] PERICARDITIS. 75 of the pericardium : and our debt of gratitude is due to Dr. AV^atson and to Dr. Stokes of Dublin ; for these two eminenc physicians pursued their enquiries independently and success- fully to the same result. Among the great variety of ausculta- tory signs referable to the heart in its different states of disease, they discriminated the attrition- sounds and set them apart from all the rest, until finally, by experiment, they referred them to their proper source, and fixed the conditions of their production in the pericardium. But there are other sounds which, prior to experience, would hardly have been suspected to proceed from the pericardium, but which, nevertheless really do so. These sounds cannot, like the ordinary exocardial murmur, be imitated by any simple device that I am acquainted with. They are said to be like the crumpling of parchment, the creaking of shoe-leather, the churn- ing of milk. And I must leave them to be represented by these similitudes without attempting to describe them ; for I am quite sure that by no description I could give, and by no similitude to which I could refer you, would you be at all the better able to recognise the sounds when you should first hear them. You must wait till you hear them yourselves ; and then you will most likely be puzzled until you are told what they are. Any one remembering what has already been said of its similitude to the sound produced by rubbing the hands together, or the cuffs of your coat, or two pieces of strong paper ; also oi its sensible nearness to the ear when it is applied to the prae- cordial region ; also of its conveyance to a distance over the chest, and its non-conveyance in the course of the aorta and carotids ; any one from this description would at once recognise the true exocardial murmur on first hearing it, and pronounce that the disease was pericarditis. But (what for want of better names I must call) the crump- ling, creaking, churning sounds require to be more frequently heard, before they are familiarly known and recognised. Yet an acquaintance with them is most important and most necessary. For they as surely indicate the presence of pericarditis as do the more perfect ordinary exocardial murmurs. One foi'tunate circumstance, however, belongs to these in- definite and less perfect sounds, which greatly diminishes the chance of evil that might be supposed to arise from a doubtful 76 CLINICAL MEDICINE. [lECT. VII. or postponed decision respecting their exact import as diagnostic signs. It is this : — wherever any one of them arises in con- sequence of pericarditis, it becomes changed, in the course of one or two days, completely or partially, into the genuine exo- cardial murmur. It is either merged entirely in it, or partakes enough of its character to leave its import no longer doubtful. And then the genuine murmur being once established continues such thenceforward through the whole course of the disease, or only changes its character a few days before its final disap- pearance. Touching these indefinite sounds referable to the heart in acute rheumatism, there is another circumstance which is worth a particular notice. It is this— that they will sometimes come and go for two or three days, and then cease altogether, or then become permanent. For an important fact, not prominent in itself, it is often difficult to gain the attention it deserves, unless you invest it with the circumstances of actual practice. Let me do so for the fact in question. This then has several times happened. A clinical clerk, having charge of a case of acute rheumatism, has distinctly heard an umiatural sound at a certain space of the priccordial region, and two or three other students have heard the same as distinctly as himself. The space has been a small space, and they have marked it with a circle of ink that they might the more easily find it again. At my visit to the hospital some time afterwards my attention has been called to the fact ; but no such sound could I hear, and those who have heard it before have confessed that they could not hear it now. But I have returned to the same patient in half an hour, and then I have heard it, and everybody else has heard it distinctly and at the very spot indicated. Now, these sounds of an indefinite kind, belonging to acute rheumatism, which are restricted to a small praecordial space, and are now audible and now inaudible several times a day for two or three days together, and then either become constant or entirely cease, always proceed (I believe) from the pericardium. For, when they become constant, they gain the character of the- ordinary exocardial munmir, and spread themselves widely over the prascordial region or beyond it. In the cases where the sounds idtimately cease without LECT. VII.] PERICARDITIS. 77 becoming cither more pronounced or constant, and without occupying a larger space, it is reasonable to believe the disease still to have been pericarditis, but of small degree and extent.* In connection with the more or less perfect exocardial murmur, many circumstances remain to be noticed which are of great interest, and which serve further to illustrate the patho- logy and diagnosis of inflammation of the pericardium. You recollect the history formerly given of the attrition- goimd occurring in the course of pleurisy ;t how it arose at one period of the disease, ceased at another, and returned again at a third. The solid products of inflammation, the lymph, upon the opposite surfaces of the pleura, first produced the soimd. The fluid products of inflammation, the serum, in the cavity of the pleura, obliterated it. And the absorption of the serum from the cavity, while the lymph still remained upon the sur- faces, caused it to return. Now in pericarditis there are the fluid products of inflam- mation as well as the solid. There is serum as well as lymph. And the signs of fluid efi'used within the pleura and the pericar- dium are the same. The fact of its existence, and the measure of its accumulation within the pericardium, can only be known by the degree and extent to which the proecordial region, and perhaps some space beyond it, may be dull to percussion. Thus in pericarditis dulness sometimes occupies a jjart and sometimes the whole of the praecordial region ; sometimes it reaches beyond the praecordial region, as high as the second, and even the first left rib ; sometimes it extends beneath the whole length of the sternum, except about an inch at the top, and even beneath the cartilages of the ribs on the right side. * I would not willingly represent the diagnosi:^ of the seat of disea^je within the heart by the quality of its abnormal sounds, as more easy, or more constant, or more absolutely sure than it really is. Notice is here- after (page 86) taken of certain cases, in which it could not be determined whether the inflammation was of the endocardium or of the pericardium. Dr. Bence Jones informs me, that at St. George's Hospital he has sometimes found no distinction possible between the endocardial and exocardial murmurs themselves ; and that then the variations of sound, from day to day, and even from minute to minute, and often in consequence of cliange of position, have aflbrded him the means of recognising inflammation of the pericardium. t In the course of lectures given at St. Bartholomew's, those on pleurisy preceded those on diseases of the heart. 78 CLINICAL MEDICINE. [lECT. VII. Surely, then, this dulness to percussion is a most important sign, and hardly inferior to, and hardly less diagnostic of, the pathological conditions to which it points, than the exocardial murmur itself. But do these two, viz. the murmur and the dulness, bear the same relation to each other as signs of disease within the pericardium, as they have been seen to bear as signs of disease within the pleura ? In pleurisy the attrition- sound and the dulness are never coincident, but are always found to supersede each other, one ceasing as soon as the other arises. Is this the case in pericarditis ? My own experience would answer almost absolutely " No ! " As soon as I have discovered the exocardial murmur at any part of the praecordial region, so soon have I almost always found dulness to percussion. And, to whatever extent the dulness to percussion has spread beyond the praecor- dial region, the murmur has accompanied it, even as high as the first left rib, and beneath the sternum, and far beyond it, even to the juncture of the cartilages with the right ribs. Further, I have known dulness of the praecordial region to be the first sign, and to subsist several days alone, and yet the attrition- sound has at length been superadded to it, when they have thenceforth been continued together. In pericarditis, then, this I take to be the general truth, namely, that the murmur, which is produced by lymph, deposited upon the surfaces of the membrane, is neither abated, nor abolished, nor otherwise altered in its character by the serum effused within its cavity. It is not, however, the universal truth. Indeed, I have seen a few instances of pericarditis, where the murmiir, clearly heard day after day, has at once become very indistinct, or has been suddenly lost altogether. The disease has been at its greatest activity, and the heart at the very time has suffered some extraordinary bafflement of its actions. But the sound, thus abated or abolished, has suddenly returned, and in a day or two has been as perfect an exocardial murmur as it was before, and then the heart's actions have recovered their regularity. In these instances the remedy which has thus instantly relieved the heart and restored the sound has been a large blister vesicating the whole praecordial region, and a wide space around it. Now dwell a little thoughtfully upon these instances, and LECT. VII.] rERICARDITIS. 79 upon tlio several attendant circumstances, both when the sound goes and when it returns, and above all, upon the remedy, and its immediate effect ; and then say what they can denote, but now a sudden increase, and now a sudden decrease, of fluid within the pericardium ? But still, if the common experience be In accordance with ray own, and if my own speak the truth in this matter, the fact will be, that serous effusion within the pleura alivays obliterates the attrition- sound, and that serous effusion within the pericardium generallj/ leaves it unaltered. Now there must be some way of accounting for so different a result from conditions apparently the same. The following considerations, perhaps, point out a way that is plausible at least. Fluid within the pleura exercises Its pressure upon the most yielding organ of the body, the lungs. They make no resistance, but, shrinking in their dimensions, and giving place more and more as the fluid increases, they recede further and further from the ribs, until at length they are forced into an incredibly small compass by the side of the vertebral column, impervious to air and useless, but in themselves perfectly free from disease. But fluid within the pericardium produces no such effect upon the heart by its pressure. The heart, of all organs of the body, is the least yielding. It is the pericardium that now 3'ields. But then, in the greatest accumulation of fluid within it, the space intervening between the pericardium and the heart will bear no comparison with that between the pleura and the lungs in ordinary cases of pleurisy. Further, when in peri- carditis death has taken place while the inflammation was progressive, dissection has generally found as much solid as fluid matter within the pericardium, and sometimes even more lymph than servmi. The heaped-up, curdled albumen covering the entire heart, and adherent to, or pendulous from, the loose pericardium, would make it appear that the interposed serum (which itself contains flakes of lymph) was not enough to pre- vent the opposite surfaces from touching and rubbing against each other, and so to prohibit the murmur. In the few cases where the dulness to percussion supersedes the murmur, or greatly alters its character, it is probable that the fluid products of inflammation exceed the solid, that the serum exceeds the lymph, in an unusual measure. 80 CLINICAL MEDICINE. [lECT. VII. The exocardial murmurs of more and less perfect character, and the dulness to percussion of the praecordial region, and of more or less space beyond it, are strictly auscultatory^ signs, being both equally learnt and appreciated by the ear. It is with such that I am now principally concerned. But I may be permitted perhaps to conjoin with them two other signs, directly referable to the heart, indicating the same conditions of disease and often found in their company, but learnt and appreciated by an appeal to other senses. In pericarditis, while the praecordial region is dull to per- cussion and the exocardial murmur is heard, an undulating motion often becomes visible to the eye in some of the spaces between the cartilages of the ribs on the left side. It has always been either between the cartilages of the second and third ribs, or of the third and fourth, or between both at the same time, that I have seen this motion, and never in any other situation. So, too, in pericarditis, while the praecordial region is dull to percussion and the murmur is heard, a vibratory motion often becomes sensible to the touch in some of the spaces between the cartilages of the ribs on the left side. As I never saiv the undulatory, so I never felt the vibratory, motion elsewhere than either between the cartilages of the second and third , or of the third and fourth ribs, or between the cartilages of both simultaneousl}'. The vibration (I believe) is the more frequent of the two, and often occurs unaccompanied by any visible undulation. But the undulation was never apparent to my eye without my finger being able to detect a sensible vibration at the very same spot. It is hardly necessary to give a formal explanation of these phenomena. It is no unusual thing that the same vibrations which convey sounds to the ear should make themselves sensibly felt by the touch, or that a fluid should impart its own undu- latory motion to contiguous bodies. Now these two signs, which address themselves respectively to the sight and to the touch, are simple, direct, and easily apprehended, but inferior in value, both to the murmur and to the dulness on percussion, as pointing out inflammation of the pericardium. Neither the vibration to the touch nor the un- dulation to the eye are always present. Many a case of LECT. VII.] rERICAKDITIS. ) 81 pericarditis has passed through its entire course without cither one or the other manifestinn; itself. So that, if avo depeudcd altogether for our diagnosis upon either or both, pericarditis must often go undiscovered. Again, where they do appear, it is not (as far as I observe) ever at a very early period of the disease. So that, though they might afford a sure diagnosis enough, it would be less practically valuable as coming late, when the time for the most efficient treatment of the disease is past. But fortunately our diagnosis of pericarditis need never depend upon them ; and more fortunately still, our diagnosis is already settled before they appear. For in pericarditis (as far as I have observed) they never occur but as accompaniments of the exocardial murmur and the praccordial dulness. And farther, when they do occur (as far, as I have observed), they always appear later, and cease earlier, than these do. There remains another observation to be made in calculating the just value that belongs to one of the two signs in question, viz. the vibration conveyed to the touch between certain inter- costal spaces. It is occasionally present in more diseases of the heart than one ; in disease of the semilunar valves, whether of the pulmonary artery or of the aorta, as well as in inflammation of the pericardium. Which disease it indicates, and in which situation, must be determined by the concurrent circumstances of the particular case. It would not then perhaps be unjust to conclude that the exocardial murmur and the prcecordial dulness are supreme in the diagnosis of pericarditis ; and that they neither receive nor require any aid fi'om other signs directly referable to the heart, though such (it appears) there are, which are as simple, and as plainly cognisable by other senses as themselves are by the ear. Thus far I have been dealing with these auscultatory signs analytically ; setting them apart, and describing what they are in themselves, explaining the mode of their production, and the conditions out of which they arise, and comparing them with others that might seem to hold competition with them. And perhaps I have thus made them as intelligible to you as in this manner they can be made. You may now understand their proper sphere of diagnosis, and their just value ujwn the ivhole. 6 82 CLINICAL MEDICINE. [lECT. VII. But, for tlie great uses they are to serve, 3'ou must become acquainted with them in their accustomed complications, and mixed, as nature mixes them, with the events and circumstances of actual practice. My own experience of pericarditis is mainly derived from what it is, as an accompaniment of acute rheumatism. I have seen the disease, indeed, under other circumstances. But it has been very seldom; so seldom, indeed, that I have little acquaintance with other conditions external or internal con- ducing to it. I can neither tell whence to look for it nor when to expect it, except when it occurs as a part of acute rheu- matism. The pericarditis, which is acute and rapidly progressive, and, unless arrested by timely and effectual treatment, full of peril, this is the pericarditis I mean. And with this the prac- tice of a large hospital has rendered me familiar by presenting me every year with numerous instances of it in alliance with acute rheumatism. But, separate from acute rheumatism, even the practice of a large hospital does not present me with more than an instance or two of it in several years. And, as of the disease itself, so of all the symptoms and auscultatory signs by which I learn its existence and direct its treatment, my chief knowledge comes from acute rheumatism. In analysing the sources of our knowledge, let us be just in allowing to all times and to all methods of investigation their due merit. It ill beseems that impartiality which ought especiall}^ to characterise every enquiry after such truths as we are engaged in, to be bent upon depreciating the labours of the past age and exalting those of the present, or disparaging old methods of research and praising new ones. Pathology and practical medicine had assuredly made some respectable ad- vances before we were born, and before physicians had found out all the uses of their ears, and of the stethoscope. Long before auscultation was practised, physicians knew a great deal about inflammation of the pericardium. They knew well the pathological conditions of the constitution at large out of which it is most prone to arise, and consequently when to expect it. They knew well when to infer its existence from such symptoms as were within their reach. They knew well how to treat it, using all the same remedies that we do now. LECT. VII.] PERICARDITIS. 83. and (lircctin<> them to fulfil the same indications. Finally,- they knew well all its consequences. Long before auscultation, pericarditis had a good claim to be considered one of those diseases which was tolerably well understood. ^ow that which served our predecessors as the basis of all they knew clinically concerning pericarditis was the general fact of its alliance with acute I'heumatism. This fact, so sure and well authenticated, gave an interpretation and a meaning to many equivocal circumstances, and placed them, for the time, almost in the rank of diagnostic symptoms. The direct symptoms from which they inferred its exis- tence were these ; — pain in the pra^cordial region, often augmented by pressure, anguish, and oppression of breathing, and an irreo^ular or intermitting action of the heart. But these symptoms are not very precise ; they have been found in other diseases of the heart, and in diseases of other thoracic organs. It may seem strange, then, that physicians having only these to guide them should be able to detect pericarditis so often and so surely as they did. But then (I repeat) they knew the ■conditions imder which pericarditis was apt to occur ; and, when those conditions arose, they were perpetually upon the watch for it. And thus when, in the midst of acute rheu- matism, there arose a praecordial pain, an anguish of respiration, and an irregular action of the heart, they interpreted them to denote pericarditis, and they were generally right. They were right, when these signs occurred in acute rheu- matism, in concluding them to mean pericarditis ; but, lohen in acute rheumatism not one of these signs occurred, and the peri- ■carditis existed nevertheless, they overlooked the disease ; and they could not help but overlook it. And when (what more frequently happened) these signs occurred indeed, but not until the pericarditis had already existed many days, they did not overlook it, but they gained too late a knowledge of it, much precious time having been already lost to its treatment. Thus pericarditis has indeed been entirely overlooked by my- self, and by better men than myself ; overlooked when we were most upon the watch for it, under circumstances most con- ducive to it, even as the accompaniment of acute rheumatism. The inflammation has been severe, and, being unarrested by any remedy, it has run on rapidly to its fatal termination ; and 84 CLINICAL MEDICINE. [lECT. VII. after death we have stood amazed at the disease disclosed to our eyes by dissection. These are events of past years. In such unfortunate cases there was neither proecordial pain, nor respiratory anguish, nor irregukr pulse ; and the auscultatory signs of pericarditis were as yet unknown. But the like mistakes could hardly occur note ; it is scarcely possible that jjericarditis coming on just at the suspected time, and just under the suspected circumstances, could noiv be overlooked. Every pinxdent physician, I presume, searches after it day by day with his ear in all cases of acute rheumatism ; and though the heart itself show no vital consciousness of its ailment either by feeling or function, by pain or palpitation, — though the organs in closest relation with the heart, the lungs, feel nothing, suffer nothing, and declare nothing, and so there be no dyspna3a, yet will the mere mechanwn of the disease proclaim the fact of its existence to the ear. By reason of its perfect lubricity, the healthy pericardium carries on the movement of its surfaces upon each other in perfect silence. It is enough to make their movement audible if inflammation do but sj)oil this perfect lubricity, and as soon as inflammation produces ruggedness and inequality, the move- ment is accompanied by harsh sounds . Still, of an acute and severe rheumatic pericarditis running on to its fatal termination, absolutely unattended from first to last by any symptoms except the auscultatory^, the examples, I believe, are very rare ; few at any time have died of it without any atteraj^t to save them. The victims of an undiscovered and imtreated pericarditis are few ; but the examples (I am persuaded) are by no means rare of an acute and severe rheu- matic jDcricarditis progressive for many days, and unattended in the meantime by any but auscultatory symptoms, other symptoms, however, arising at last ; and many such cases (I am persuaded) Avere fatal formerly. The best treatment com- menced as soon as the only symptoms then understood had declared themselves, came too late ; and many such cases would be fatal no^o, did not the first attrition-sound from the pra:- cordial region call into instant use the remedies by which we deal with pericarditis. My experience tells me, that in acute pericarditis the LECT. VII.] PERICAKDITIS. 85 fluttering, fiiltcring action of the heart, and, with it, the respiratory anguish, arc almost sure to occur, but that the time of their occurrence is almost always late, and that the murmur and the pra)cordial dulness always precede them. But my experience tells me, that in acute pericarditis tlie pain, if it occur at all, almost always occurs early. The first access of inflammation generally produces it as well in the pericardium as in other parts. Yet, early as is the pain, the murmur is often earlier. But of all symptoms mere pain is the most inconstant and uncertain, whatever be the disease. It is so in pericarditis. It is present in one case, and absent in another strangely and unaccountably. I have known much pain, when the disease has been of little severity, of short duration, and of easy cure : and I have known the severest pericarditis pass through all its stages without pain. All other symptoms have been present to mark its reality and its progress : the murmur and the pra)- cordial dulness, and the fluttering heart, and the respiratory anguish. And sometimes the patient has died, and sometimes he has escaped by a tardy and precarious convalescence. But from first to last there has absolutely been no pain. Do not be surprised at this. Pleurisy may exist without pain ; even acute, rapid, pus- effusing pleurisy. Peritonitis may exist without pain ; even acute, rapid, pus-eft'using peritonitis. And so, too, if in pericarditis there is sometimes no j^ain, it fortunately happens that there are other signs by which we -can fix our diagnosis of the disease equally well without it. See what a strange, imequal, and uncertain light pain is found to throw upon diagnosis and treatment ! We find it where we do not look forit, and look for it where we do not find it. Its presence is no sure proof, its absence is no sure nega- tion, of disease. But still pain is a most important symptom. Where there is pain, we should always think of disease, always search after disease, and always require strong circumstances to convince us •that disease does not exist. AVhere there is no pain in a part suspected of disease, we should never on that account conclude it to be healthy, and never be content until we find other cir- •xjumstances to convince us that it is really so. 8G CLINICAL MEDICINE. [lECT. VIII. LECTURE yill. THE FREQUENCY OF ENDOCARDITIS AND PERICARDITIS, OCCURRING SEPARATELY OR TOGETHER, AS THE ACCOMPANIMENTS OF ACUTE RHEUMATISM. — PRESENT RESULTS OF ENDOCARDITIS OCCURRING ALONE. OF PERICARDITIS OCCURRING ALONE, — OF BOTH OCCURRING TOGETHER. DIFFICULTY OF GAINING KNOW- LEDGE OF THEIR ULTIMATE RESULTS, WHEN THE CURE IS IMPERFECT. Between the years 1836 and 1840, both, inclusive, there occured under my care at St. Bartholomew's Hospital 136 cases of acute rheumatism : Of these 136 j^atients 75 were males, and 61 were females ; of the 75 males the heart was affected in 47, and unaffected in 28. Of the 47, the seat of disease was the endocardium alone in 30 ; the pericardium alone in 3 ; and both the endocardium and the pericardium in 7. And, while the heart was undoubtedly affected in 7 others, the exact seat of its disease was uncertain. Of the whole number of males in whom the heart was thus variously affected 3 died. And in these 3 the pericardium and the endocardium were both inflamed. Of the 61 females the heart was affected in 43, and unaffected in 18. Of the 43, the seat of disease was the endocardium alone in 33 ; the pericardium alone in 4 ; and both the endocardium and the pericardium in 4 ; and the exact seat of the cardiac disease was doubtful in 2. Of the whole number of females in whom the heart was thus ■variously affected none died. The account of males and females taken together will stand thus : — Cases of acute rheumatism .... 136 Heart exempt in . . . . 46 Heart affected in . . . . .90 LECT. VIII.] FREQUENCY OF ENDOCARDITIS, ETC. .S? Seat of disease in the heart : — Endocardium alone in . . . .63 Pericardium alone in .... 7 Endocardium and pericardium in . .11 Doubtful in 9 Deaths 3. In all of whom both the endocardium and the pericardium -svere affected. Here are momentous facts which go (I suspect) a good deal beyond the ordinary notions entertained by medical men of this matter. It is believed that among the sufferers of acute rheu- matism an individual now and then unluckily has his heart inflamed. The thing is looked upon as an accident which, if not very rare, yet is not very common. But it appears, from the event, not of a dozen or twenty cases merely, but of a number large enough to furnish the measure of what naturally belongs to the disease, that as many as two-thirds of those who have acute rheumatism also suffer inflammation of the heart.* Further, the pericardium is popularly regarded as the special and most frequent seat of the inflammation which takes its rise from acute rheumatism. But it appears from cases sufficiently numerous, that endocarditis occurs nine times in acute rheuma- tism, for pericarditis once ; that simple endocarditis constitutes more than two-thirds of all rheumatic cardiac aflfections, and simple pericarditis only one-thirteenth ; and that pericarditis is more frequently found in combination with endocarditis than alone. Next we come to the results of these cases. And there are many results worth inquiring about ; but, when the disease is inflammation, and the part affected is vital, everybody first thinks * It has been suggested to me that, in the records of my practice at St. Bartholomew's, thei-e would probably be found a somewhat greater frequency of endocarditis and pericarditis, as the concomitants of acute rheumatism than is usually observed; and that this might be owing to the sedulity of my clinical clerks, who were ever on the alert to gain admission into my wards of (what were esteemed) interesting cases, and that thus I might get more than my share of rheumatisms in which the heart was affected. I cannot exactly tell how this may be, but I hear all physicians of public hospitals speaking of the heart being affected in acute rheumatism with a frequency far beyond the common belief. The proneness of the heart to inflammation in rheumatic fever may not be at all times the same. It may belong to (what Sydenham would call) the epidemic constitution of a certain series of years. 88 . CLINICAL MEDICINE. [lECT. VIII. of the great result in present death or recovery, and asks what are the hojaes of life and what the fears of death. Now, you already know that out of the 90 cases of cardiac disease occurring in the course of acute rheumatism, cases of simple endocarditis, and cases of simple pericarditis, and of both mixed, and of some doubtful, only three deaths are recorded. Well, then, have all these pains and all this care of diagnosis been thrown away uj)on a class of diseases which, albeit they are of a vital organ, prove fatal only in one case out of thirty ? But besides the great result of present death, or recovery from the present inflammation, there are other results, practically and pathologically important in the highest degree, which aus- cultation and auscultation alone has enabled us to trace and to aj)preciate. The results of simple rheumatic endocarditis were these : — Of the G3 patients who suffered simple endocarditis in the course of acute rheumatism, 30 were males and 33 were females, of whom none died. And if the sort of subjects we have to deal with in a London Hospital be considered, their different habits and constitutions, which are bad in the majority, and the dis- advantages of their postponed treatment, so common in the acute diseases of the poor, it must be confessed that the endocarditis of acute rheumatism does not involve much immediate peril of life, when of all the cases of this disease, 63 in number, which occurred in the course of five years, not a single one was fatal. But of these 63, whom the endocarditis did not kill, and who as far as general symptoms could be trusted, might be pronounced convalescent or well, auscultation still told us that, after the inflammation had ceased, the membrane recovered its complete integrity of structure only in 17, and that it remained perma- nently injured in 46. For of the 30 males, the subjects of rheu- matic endocarditis, the endocardial murmur ceased entirely only in 8 ; while it remained, after they were convalescent, and as long as they continued under observation, in 22. And of the 33 females the endocardial murmur ceased entirely only in 9 ; while it remained in 24. Thus, while inflammation arrested and life saved in all the cases which occurred, even 63 in nvimber, do indeed sufficiently testify how small is the present peril of life from rheumatic endocarditis, vet the entire restoration of the endocardium to its LKCT. VIII.] JiESULT.S OF I'EliKJxVKDITIS. 89 perfect structure in 17 only, and the permanent injury done to it in 40, denote a most fearful disease in regard to its distant results. For the probability is as g-reat as four to one, that inflammation befalling the endocardium will become the rudi- ment of disorganisation to the entire heart. The results of simple rheumatic pericarditis were these : — Of the 7 who suffered simple pericarditis in acute rheu- matism, 3 were males and 4 were females, of whom none died. Life was saved in all. Inflammation was arrested in all ; and all resumed the general conditions of health. Neither, after inflammation arrested and life saved, did it happen to any one of these cases of pericarditis, as it did to 46 out of 63 of endo- carditis ; not in a single case did the exocardial murmur remain after convalescence to denote a still abiding change of structure in the pericardium, as the endocardial murmur had remained, and denoted permanent disorganisation of the endocardium in so many cases of endocarditis. But were all these cases of pericarditis perfectly cured ? After the inflammation ceased, was there no remnant of injury in any case where there was no exocardial murmur to denote it ? In pericarditis, when the exocardial murmur entirely ceases, we have not the same strong grounds for believing that the pericardium has both lost its inflammation and recovered its healthy condition, as we have in endocarditis, when the endo- cardial murmur ceases, that the endocardium is quite sound again. These two auscultatory signs, referable to the internal and external membrane of the heart respectively, cannot be taken equally to imply the same things both when they come and Avhen they go. When they come, they both equally denote new matter deposited, the one upon the endocardium and the other upon the pericardium. But when they go, they do not both equally denote that the newly deposited matter has been removed. When the endocardial murmur ceases, it does denote as much ; when the exocardial murmur ceases, it does not. For the endocardial murmur could not cease, while the lymph still remained on the endocardium to produce the obstruction to the blood which caused it. But the exocardial murmur could cease, while yet the lymph remained on the pericardium. For its opposite surfaces might by the same lymph be made to adhere, and thus the cause of the murmur would be removed. 90 CLINICAL MEDICINE. [lECT. VIII. Hence, therefore, out of the 63 cases of simple endocarditis, in which inflammation was arrested and life saved, I feel abso- lutely certain that the cure was perfect in 17 ; a small pro- portion, indeed ! while out of the 7 cases of pericarditis, in which inflammation was equally arrested, and life saved, I have no assurance whatever that the cure was perfect in a single one. But although in these and in all cases of acute pericarditis there is nothing certain beyond the immediate result of the treatment in arresting inflammation and saving life, there may be something 7;ro/^rt5^e as to the condition in which the inflamed parts are left, and as to the perfection or imperfection of their cure. What is probable, then, is this, that, whenever the pericar- dium is acutely inflamed, and lymph enough is deposited upon it to produce the exocardial murmur, the cure seldom amounts to a complete restoration of its natural structure, but that the whole, or some considerable portions of its opposite surfaces, permanently adhere. This is probable from the nature of the disease itself, and of the serous membrane which it implicates. And it is nauch more probable from what actually occurs in many cases. For after the exocardial murmur has long ceased, and the patient is deemed convalescent, signs directly referable to the heart will often remain or arise, showing that the organ is not at ease — that it still sustains an injury which bafiles and restrains the freedom of its natural actions. The signs, taken alone, are not enough to define the injury, either what it is, or where it is ; but taken in connection with the previous disease they are quite enough. They denote that the permanent injury has the same seat as the previous disease, viz. the pericardium, and that it consists in that change of structure to which inflamma- tion of the pericardium naturally tends, viz. adhesion of its folds. In 4 of the 7 cases of simple pericarditis, I find the follow- ing records made just before the patients passed from under my observation, and left the hospital: — 1. " Sounds of the heart not distinct one from the other." — M. 31, 181. 2. " Sounds of the heart as if muffled."— W. 22, 4. 3. " Increased impulse of the heart for a month after the exocardial murmur had ceased, and as long as the patient remained under observation." — "W. 25, 121. LECT. VIII.] RESULTS OF ENDOCARDITIS, ETC. 91 4. " Praecordial region presents a greater extent of dullness to percussion than natural." — W. 26. 121.* The results of rheumatic endocarditis and pericarditis com- bined in the same subject were these : — Of the 11 in whom endocarditis and pericarditis were combined, 7 were males and 4 were females. Out of those, inflammation was arrested, and life saved in 8; and 3 died. Of the 8, who were convalescent from this double disease, one of the structures inflamed, the endocardium, underwent perfect reparation in 2, for the endocardial murmur entirely ceased; and imperfect reparation in 6, for the endocardial murmur continued. As to the other structure inflamed, the pericardium, although the exocardial murmur ceased in all, it is doubtful whether its reparation was perfect in any. Probably there remained a greater or less extent of permanent adhesion. Thus of these 8 cases of double disease, or of inflammation involving the two structures of the heart, I am not sanguine enough to believe that the organ recovered a perfectly healthy condition in a single instance. For in the 2, where, doubtless, the endocardium was perfectly restored, the pericardium probably adhered; and in the 6, where, doubtless the endo- cardium was permanently injured, the pericardium probably adhered also. In the 3 fatal cases, the auscultatory signs denoting inflam- mation of the endocardium and pericardium were well marked, and on both membranes dissection disclosed the recent effects of inflammation, when it is arrested in its mid progress by death. I subjoin an account of them which you may take as specimens of the disease: — In one case the folds of the pericardium were universally adherent, but were easily separated. The connecting lymph was peculiarly vascular over the left ventricle, and being detached, discovered some spots upon the surface of the heart which looked like pus. The endocardium bore marks of * The letters and numerals here and elsewhere denote the volumes and pages of my own ]\IS. case-hooks. I am aware that they can now afibrd no. help to the reader, since they do not refer to documents open to his consulta- tion. Still, at some future time the cases may be recorded, and then the references will be of use. 92 CLINICAL MEDICINE. [lECT. VIII. inflammation on botli sides of the heart. On the tricuspid valve, at a little distance from its free edge, was a spot, one- third of an inch in diameter, pink in the centre, and surroiinded with a white elevated border. On the mitral valve were smiall pearly bodies, about the size of millet seeds, fringing its free edges. The aortic valve was thickened and of a pinkish colour, and displayed upon its surface, a little below its free edges, bodies of the same form and size as those found upon the mitral valve. The general bulk of the heart and the capacity of its cavities were natural, and its muscular substance had the appearance of health. Here the exocardial murmur ceased twelve days before the patient's death. But the endocardial murmur continued, until the symptoms of dissolution arose, and the movements of the heart were too feeble to make it audible. — M. 25. 29. In another case the pericardium adhered at no part, but was every where covered, both on its free and reflected surface, with curd-like lymph, which was accumulated in the largest quantity over the auricles, and on the basis. The adventitious membrane being turned back, discovered red spots beneath of extravasated blood like petechia). The quantity of fluid in the pericardium was very small, not exceeding two or three drachms. It was like whe}'. The endocardium showed the eflfects of inflammation on both sides of the heart. The tricusjDid valve had minute pearl-like bodies deposited near its free edges. The mitral valve had bodies of the same kind in the same relative situation, and around some of them there was a slight blush of red. On passing the finger from the ventricle into the aorta, a palpable obstruction was felt in the situation of the valve. This was found to arise from a single fibrinous deposit upon one of the valvular processes. It was of an irregular form, and one-third of an inch in size at its greatest diameter. All the three processes were slightly thickened, and of a pinkish colour, but upon one only was there any morbid deposit. The general bulk of the heart and the capacity of its cavities were natural, and its muscular substance was apparently healthy. Here the exocardial and endocardial murmurs continued, until the symptoms of dissolution arose. For four days before LECT. VIII.] RESULTS OF ENDOCARDITIS, ETC. 93 death, the heart could hardly be heard or felt, and all distinc- tion of sound was necessarily lost. — M. 25. G9. In the third case the pericardium was only partially adherent by round loose bands of lymph, and its surfaces, where they Avcre free were covered by a continuous layer of lymph, half an inch thick, and studded with rough, unequal, villous prominences. The pericardium contained about three ounces of whey-like fluid. The endocardium bore marks of inflammation only on one side of the heart. The mitral valve had a rough fringe of minute deposits near the edges of its free border, and each process of the aortic valve had a fringe of the same kind, only thicker. The muscular substance was perfectly healthy. The whole organ seemed rather large ; but it could hardly be said that any part of its substance exceeded its natural bulk, or any one of its cavities their natural capacity. Here the exocardial and endocardial murmurs continued until the death of the patient. — M. 31. 140. In contemplating endocarditis and pericarditis united in the same subjects, do we find ground for believing that either naturally tends to produce the other ? In 4 of the 1 1 cases the endocardial was prior to the exocardial murmur; and in 4 the exocardial was prior to the endocardial. In 1 case they arose simultaneously after the patient's admission into the hospital, and in 2 they were found already co-existing at the time of admission. Such were the results of rheumatic inflammation of the heart in the 90 cases which fell under my observation in the course of five years. They include the events of life and death during the progress of the inflammation, and the condi- tions of perfect and inperfect cure in which the endocardium and pericardium were left after its cessation. Here my observations stopt. And, indeed, in the 17 cases of endocarditis terminating in perfect reparation, and the 3 of complex endocarditis and pericarditis terminating in death, it embraced the entire disease. But in all the rest there were other results yet to come which my observation could not reach. These are such as are yet to emerge sooner or later in the course of future existence. The injured valves, or the adherent pericardiimi, or both combined, lay their own conditions upon the continuance 94 CLINICAL MEDICINE. [leCT. VIII. of a man's life, and sometimes settle beforehand the manner of Ms death. Sad, indeed, but most interesting and instructive, would be the entire history of the lives and deaths of all those in whom I here witnessed the first attack of disease, which spoiled the perfect structure of the heart. Such an entire history I shall never know. I may learn a few particulars of one or two whom I may chance to meet with, and this is all I expect. But our knowledge of chronic maladies, which last for years, is not gained in the same manner as our knowledge of acute diseases, which last for a few days or a few weeks, viz. hy watching their progress from beginning to end in the same individual patients. Our knowledge of chronic maladies is picked up piecemeal from numerous cases seen for a while, and only for a while, at different periods of their progress. One case shows us the disease at its beginning, another at a more onward stage, another at its mid period, another towards its decline, another at its end; and then joining together the facts so collected from man!/ individuals, we get our notion of what the disease may be in its entire course and character, from first to last. Thus, of chronic injuries of the valves of the heart and chronic adhesions of the pericardium, and their residts, you must not expect that I can give you the same sort of account, or attest it by the same sort of experience as I have j ust given and attested of the acute diseases from which they sometimes spring. I have spoken of endocarditis and pericarditis, and their results in 90 cases which I had watched from first to last. From first to last, however, was in them a period of a few weeks only. But surely I cannot speak in like manner of chronic injury of the valves of the heart, and of chronic adhe- sions of the pericardium, and give results drawn from an observa- tion of 90 cases from first to last. Yet have I seen ninety, and many more than ninety, individuals, who have suffered chronic valvular injury, or chronic adhesion of the pericardium. I have seen, indeed, an infinity of patients; but in each patient I have not seen the whole disease, but only a fragment of it, and generally a very small fragment. Such single cases, in their entire clinical history from first to last, occupy years; LECT. VIII.] RESULTS OF ENDOCARDITIS, ETC. 95 some two or three, some five or ten, some even twenty or thirty ; and of these the conditions of medical experience can only allow a partial observation. Nevertheless, such partial observations in process of time sum themselves up to a large amount of knowledge, and furnish collectively a tolerably com- plete clinical history of the diseases in question. 96 CLINICAL MEDICINE. [lECT. IX. LECTURE IX. ikflajNimation of the lungs accompanying acute rheuma- tism, EITHER ALONE, OR IN COMBINATION ^VITII ENDOCARDITIS, OR WITH PERICARDITIS, OR WITH BOTH. When our business is witli a mere dead specimen of morbid anatomy, it does not signify bow exclusively we view it. We may take it apart, and look at it tbrougb a microscope, and dis- sect and inject it and macerate it; and thus we may learn all that can be learnt about it. But when we are concerned with a living specimen of disease, if we would understand it, we must deal with it after a different manner. The living disease, while it works its own changes in the part it occupies, gives and receives influences and impressions to and from other parts, and to and from the constitution at large. Therefore, in order fully to understand it, our enquiries must be enlarged in proportion to it. They must reach as far as it reaches. They must not settle upon the one single object, but be carried into many things beyond it. Our present subject is the heart and its diseases ; and what we have now especially in hand to illustrate is the inflammation of its lining and investing membranes which accompanies acute rheumatism. But the heart is not the only vital organ liable to suffer inflammation in acute rheumatism. The lungs may suffer also ; the lungs, in all the several structures of which they are composed. And the diseases which result are bron- chitis, pneumonia, pleurisy. Knowing, then, the relative dependency of function between the two organs, and finding both ready to suffer alike from the same pre-existing or co-existing disease of the constitution, however our present business may be professedly with the one, we must not refuse to let in whatever light may be reflected upon it from the other. It is not possible to make too much of those diseases of the LECT. IX.] INFLAMMATION OF LUNGS WITH IIIIEUMATISM. 97 heart which arise out of rheumatism. But it is very possible to make too little of the diseases of the hmgs which acknowledge the same origin. The truth is, wo have done so. The very- habit of dwelling long and minutely (as we needs must if we would understand them) upon the facts which concern the patho- logy of the one organ has brought us unconsciously to regard it as a single centre of disease much more than it really is. It is well to be aware of so natural a bias towards error, and care- fully to guard against it. Let each fact be made to carry with it the full force of its own truth, and yet, in relation to other facts which are as true as itself, let it hold no higher value, place, or proportion, than nature has given it. Inflammation of the heart is incident to acute rheumatism, and so too is inflammation of the lungs. The former is of more frequent, the latter of more rare occurrence. Of 136 cases of acute rheumatism, the heart was inflamed in 90, or in two- thirds of the whole ; while the lungs were inflamed only in 24, or one in5i. But that inflammation of the lungs, notwithstanding its com- parative infrequency, is a matter of no mean importance in connection with acute rheumatism, will be seen from the form and character it bore in the 24 cases. I use inflammation of the lungs as a general expression for inflammation of any pulmonary structure, either for bronchitis, pneumonia, or pleurisy. The 24 cases in question were made up of 4 of bronchitis, 18 of pneumonia, and 2 of pleurisy. Now a bronchitis, a pneumonia, or a pleurisy involves much or little peril according to its circumstances. But here, which- ever disease occurred, it always put on a serious character, either from its mere magnitude and extent, or from its force of morbid action, or from the stage at which it ultimately arrived. In the four instances of bronchitis the afiection was no mere catarrh, but an inflammation largely difiused through both lungs, producing deep oppression and dyspncea. Of the two pleurisies, one was single and the other double. The single pleurisy produced a large efiusion into one side. The double pleurisy produced a double hydrothorax. Of the 18 instances of pneumonia, in 9 the disease was of one lung, and in 9 it was of both. r 98 CLINICAL MEDICINE. [lECT. IX. Pneumonia, if it be severe and abiding, generally includes more than its name implies. How much more we can often only suspect, but not exactly tell, during the life of the patient, so entirely do the pneumonic symptoms transcend the symptoms of the concomitant disease, and in effect obscure them.. Severe pneumonia will often veil a pleurisy as severe as itself. It was suspected of doing so in several of the cases in question; and, in one case, dissection at last disclosed double pneumonia with double hydrothorax. Such forms of pulmonary inflammation are portentous ingre- dients in the clinical history of acute rheumatism, and give a fearful interest to it. But what if this fearful interest be further augmented by its frequent coincidence with inflamma- tion of the heart ? Of the 136 cases of acute rheumatism which form the basis of our inquir}'-, inflammation of the lungs was found in 24, Here the proportion is about 1 in 5|. But Jioic were these 24 cases distributed ? "What proportion of them occurred where the heart was unaffected, and what proportion where the heart was inflamed ? And, again, what proportion, where the inflam- mation was of the endocardium alone; what, where it was of the pericardium alone ; and what, where it was of the endocardium and pericardium simultaneously ? Of the 46 cases of acute rheumatism in which the heart was unaffected, the lungs were inflamed in 5. Here the proportion is as one to nine. But of the 90 cases in which the heart was inflamed, the lungs were also inflamed in 19. Here the pro- portion is more than one in five. The 19 instances of inflammation of the lungs were distri- buted amons" these 90 cases of inflammation of the heart in different proportions, according to the part of the organ affected. Of the 63 cases of endocarditis the lungs were inflamed in 7. Here the proportion is as one to nine. Of the 7 cases of pericarditis the lungs were inflamed in 4. Here the proportion is more than one-half. Of the 11 cases of endocarditis and pericarditis simulta- neously, the lungs were inflamed in 8. Here the proportion is more than two-thirds. What can we, or what can we not, conclude from this enume- ration of facts ? "What general truths do they declare ? LECT. IX.] INFLAMMATION OF LUNCiS WITH RHEUMATISM. 99 We cannot conclude, from inflammation of the lungs being found in one case of acute rheumatism out of nine, that acute rheumatism has any strong natural tendency to inflame the lungs. Neither can we conclude, from its being found in one case of rheumatic endocarditis out of nine, that rheumatic endocarditis has a special natural connexion with inflammation of the lungs. The probability of inflammation of the lungs arising out of acute rheumatism is small ; and the probability is not at all augmented by its alliance with endocarditis. For in acute rheumatism, inflammation of the lungs does not occur more frequently when the endocardium is inflamed, than when the heart is entirely exempt from disease. We find it to be between inflammation of the pericardium and inflammation of the lungs, and between inflammation of the endocardium and pericardium occurring simultaneously in the same subject, and inflammation of the limgs, that frequent coincidence seems to establish a natural connexion. That inflammation of the heart which is least perilous in itself is least liable to have its danger augmented by an union with inflammation of the lungs, viz. endocarditis ; while that which is most perilous in itself is most frequently accompanied by inflammation of the lungs, adding immensely to its danger, viz. simple pericarditis, or endocarditis combined with pericarditis. Of rheumatism without affection of the heart there were : — Cases 46. — Lungs affected in 5. Single pneiunonia (fatal) M. 26. 26. Single pneumonia M. 27. 81. Single pneumonia W. 21. 111. Diffused bronchitis ending in double pneumonia M. 30. 65. Diffused bronchitis of both lungs . . . W. 24. 149. Of rheumatism with endocarditis there were : — Cases 63. — Lungs affected in 7. Double pneumonia M. 27. 227. Double pneumonia W. 25. 42. Double pneumonia "W. 26. 65. Diffused bronchitis passing into double pneumonia W. 20. 216. Single pneumonia M. 27. 142. Diffused bronchitis of both lungs . . . M. 24. 178. Bronchitis passing into inflammation of the larynx and trachea W. 21. 130. M. 32. 166. W. 25. 183. ^Y. 22. 110. y and M. 31. 140. M. 26. 44. M. 30. 107. e lung M. 25. 29. M. 25. 69. 100 CLINICAL MEDICINE. [lECT. IX. Of rlieumatism with, pericarditis there were : — Cases 7. — Lungs affected in 4. Double pneumonia M. 31. 121. Diffusedbroncliitispassingintodoubleimeumonia M. 29. 60. Single pneumonia W. 22. 4. Single pneumonia W. 25. 121. Of rheumatism with endocarditis and pericarditis combined there were : — Cases 11. — Lungs affected in 8. Double pleurisy with-double liydrotliorax Single pleurisy with hydrothorax Double pneumonia .... Double pneumonia with double pleurisy and double Lydrotborax (fatal) . Single pneumonia .... Single pneumonia .... Pneumonia and diffused bronchitis of one (fatal) Diffused bronchiti?. of both lungs (fatal) I know not how I can give you a better notion of what these complications really are, and how they present themselves one after another to clinical observation, and the awful amount of disease that results, than by describing, with some detail, certain cases of acute rheumatism in which they existed, and comment- ing upon their particulars as I go along. William Buckley, a stout well-formed man of forty years of ace, was admitted into St. Bartholomew's October 27, 1836. He was suffering acute rheumatism, and complained of pain, chiefly in his right shoulder and his right wrist, which was very red and much swollen. His skin was very hot, his pulse ninety- six and hard and full, his urine scanty and high-coloured, his tongue covered with a thick moist white fur. He was thirsty, without appetite, and sleepless at night. But withal his coun- tenance was good and quite free from anxiety ; in short, it was the coTintenance of health. He had no internal pain whatever, and the sounds of his heart were perfectly natural. Now this man was habitually healthy, and had never suffered acute rheumatism in his life. His present attack was from accidental exposure to cold, ten days ago, which was followed by chilliness, heat, perspiration, and pain. The pain began in his feet, passed to his ankles, and had already visited LECT. IX.] INFLAMMATION OF LUNGS WITH RHEUMATISM. 101 all his joints in their turn, and been accompanied with heat and swelling in all. This case surely promised well, and I was content to treat it with ten grains of Dover's powder night and morning, and to interpose the use of active purgatives. Tor three entire days, and four entire nights, his existing symptoms remained nearly the same, and no new symptoms were superadded. On the fourth day the pain and swelling had shifted from the right wrist and shoulder to the left wrist and shoulder. And now, in applying the stethoscope to the region of the heart, a distinct exocardial murmur was heard. It was chiefly at the basis, and lost somewhat of its intensity as the instru- ment was moved towards the apex. Here was unquestionable pericarditis. And let me remark that auscultation was regularly made of this man's chest day by day, and was just as much a matter of course (the case being one of acute rheumatism) as feeling his pvilse, or looking at his tongue. The disease was not sought after from the patient's drawing attention to the part by any complaint of pain or unusual sensation, or palpitation. And when the disease was found, the patient, in answer to all our questioning, still declared himself quite unconscious of any thing amiss within his chest. It was the fourteenth day of the rheumatism that the pericarditis was first discovered, and it was most pro- bably discovered as soon as it began to exist. But to proceed with the case : — The patient being a strong man, and his pulse being now more full and hard, and his fever more fully developed, and a vital organ inflamed, was bled by venaesection to twenty ounces, and ordered three grains of calomel, and a quarter of a grain of opium, every three hours. The next day the general symptoms being the same, and the exocardial murmur unaltered, he was bled again by venae- section to eight ounces, and four ounces more were taken by cupping from the prsecordial region, and the calomel and opium were still continued. The next day he had more power of moving his limbs, and the to and fro sound was thought to be a little less distinct. The next day the fever continuing fuUy developed, and the 102 CLINICAL MEDICINE. [lECT. IX. pulse full and hard, and the murmur as distinct as ever, and the calomel haying been now taken every third hour for four days and four nights, and having not yet produced the least sensible foetor of the breath or salivation, ten ounces more of blood were taken from the arm. And now for the four following days there was a great fluc- tuation of all the symptoms. The pain in the joints abated and returned, and then abated again. The pulse became less full and hard, but more frequent. He slept well one night, and ill another. The heart gave out a confusion of sounds which was indescribable. It was doubtful whether salivation was not coming on. Accordingly, for these four days, all active treat- ment was suspended, while the course and tendency of the symj)toms were carefully watched. The four days ended, it was evident that a new disease had arisen, and been added to that which already existed. The endocardium was inflamed, as well as the pericardium. It was the rise of the auscultatory signs proper to the new disease that had produced the confusion of sounds. But now the sound of endocarditis was more evident than that of pericar- ditis. The single systolic bellows -murmur was very distinct, while the to and fro sound had degenerated into a mere crump- ling. Probably the pericardium was beginning to adhere. The general state of the patient betokened great debility and distress of the nervous system. The pulse was 120, and small and soft. But this remarkable circumstance deserves to be especially noticed, that although the pericarditis had been going on ten days, and endocarditis was now superadded to it, the patient had not been all along, and was not even now, conscious of the least pain in the region of the heart. The first symptom directly referrible to the heart within his own consciousness, had arisen during the last two days. This was a palpitation whenever he turned quickly round in bed. And now the treatment was resmned by the apj)lication of eight leeches to the prsecordial region, and the same dose of calomel and opium at the same intervals as before ; for the sus- picion of salivation was fallacious. During the five following days, the symptoms continued to fluctuate more and more. The constitutional sympathy was transferred more and more from the vascular system to the LECT. IX.] INFLAMMATION OF LUNGS WITH KHEUMATISM. 103 nervous system. The to and fro sound entirely ceased, and the single systolic bcUows-munnur alone remained. And now it was evident that another new disease had arisen. At the lower part of the left lung a minute crackling had taken place of the respiratory murmur, which too surely denoted pneumonia. Again, suspected ptyalism admonished us to suspend the use of calomel ; and again it was resumed, when no ptyalism was apparent. Still there was no praecordial pain. But still the pain and the swelling returned, and receded capriciously to and from the knees and the wrists. In three days more the symptoms were all concentred in the nervous system, and all the treatment consisted in the adminis- tration of ojiium and ammonia. The pulse was very frequent and very feeble ; the tongue trembled ; the hands trembled ; there were frequent perspirations ; there was neither endocar- dial nor exocardial murmur, or any other definite sounds of an unnatural kind proceeding from the heart. Probably it could not contract with force enough to produce them. There was a mere roughness accompanying its systole. Still life continued seven days longer. In the meantime the pulse rose to 140, and became more and more feeble ; the perspirations were more profuse, and almost continual ; the tremblings of the limbs never ceased, and at length became convulsive spasms. His mind wandered all day, except when, his attention being strongly roused, he was brought for a short time to himself. At night he was sleepless, singing, or mut- tering, or vociferous. Opium, however, procured him sleep during one entire night. He woke refreshed, was rational for a short time, confessed he was free from pain, and then relapsed into delirium. His evacuations passed involuntarily. As his sweats became more copious, his tongue became drier. At length he seemed made quiet by exhaustion. His last two nights were very tranquil. On the 26th of November he died. It was the fortieth day from the commencement of the rheumatism, the twenty-sixth day from the commencement of the pericarditis, the eighteenth or nineteenth from the com- mencement of the endocarditis, and the fifteenth or sixteenth from the commencement of the pneumonia. The exocardial murmur was distinctly audible only seven 104 CLINICAL MEDICINE. [lECT. IX. days, and in nine days it was entirely gone. Hence we inferred that the pericardium was adherent to the heart. The endocar- dial murmur ceased as such in eight days, from the heart having not force of contraction enough to produce it, and so it degenerated into a mere roughness. The crepitation, which denoted the lungs to be inflamed, being once heard at the back, was never afterwards sought after ; for it would have been at peril of the patient's life to have raised him in bed, his debility had become so great. There is an omission of one important circumstance in the record of this case. I find no notice of any dulness to per- cussion in the praecordial region. In truth, I was not at that time (1836) fully aware of the important intimations derived from percussion in pericarditis. Now, why was not this man cured ? When he came into the hospital his complaint was simply rheumatism, and each of its perilous adjuncts arose one by one under our observation, and was treated vigorously and without delay. The man's constitution, too, was good, and capable of bearing well the remedies needed to arrest the progress of inflammation. Yet he died. Did he die because the great remedy failed of its specific efiect, — because the mercury failed to salivate? The appearances on dissection appertaining to the heart will be found elsewhere.* The following was the state of the lungs. Both of them were slightly emphysematous, and neither of them collapsed upon removal of the sternum. The right was crepitous throughout, and loaded throughout with frothy san- guineous fluid ; and the surface of every bronchus, as far as it could be traced, was loaded with blood. Every portion of this lung was buoyant in water. Of the left lung the entire lower lobe was hepatised, and sank in water while the upper lobe presented the same pathological conditions as the other lung. To me this case, as it passed under my observation, was full of interest and instruction, and of painful disappointment. (M. V. 25, p. 29.) Catherine Sullivan, aged 22, married, a picture of abject want and wretchedness, was admitted into St. Bartholomew's, May 4, 1837. Her skin was hot and perspiring, her pulse 120, and full, but without power, and occasionally faltering in its * Vide p. 92, LECT. IX.] INFLAMMATION OF LUNGS WITH RHEUMATISM. 105 beats. All her larj^c joints swelled and painful ; licr breathing now quick and hurried, now pausing and sighing. She com- plained, moreover, of pain in the prsecordial region, and pal- pitation. She coughed often, but did not expectorate, and in coughing she increased the pain at her heart. Auscultation found the exocardial murmur most distinct at the basis of the heart, and extending thence to the cartilage of the fifth rib. It found, also, the systolic endocardial murmur, which was, also, loudest at the basis, and gradually became less loud towards the apex. Such was her actual state. And this was her history. She had lived in vice and misery, and want. Ten days ago she had begun to suffer pain and swelling of the joints with fever. From the first she had been sensible of indefinite pain and uneasiness of the chest, which two days ago, by gradual in- crease, had reached their present form and aggravation. It is hardly possible to conceive a case more unpromising than this. Here were the worst diseases in the worst constitu- tion. They had been in progress probably for more than a week. They had probably reached their extremity two days. The pericarditis and endocarditis and the rheumatism had been hitherto untreated by any remedy. All still remained to be done that could be done. She was at once cupped to ten ounces between the left scapula and spinal column, and ordered to take two grains of calomel and a quarter of a grain of opium every three hours. The next day she was found to have passed a quiet night, though without sleep. But her pulse had risen to 140, and was certainly feebler. The proccordial pain had increased, and the palpitation and dyspnoea were undiminished. The same sounds were heard in the region of the heart. She had had three or four bilious motions. Thus the change since yesterday was surely for the worse. The greater weakness and greater frequency of the pulse denoted that a collapse of the nervous system was at hand. But one symptom there was, which, among all others that were bad, still furnished me a ground of hoiDe. The tongue was covered with a white fur, and was very moist. This seemed to promise a speedy salivation. She was again cupped between the left scapula and the 106 CLINICAL MEDICINE. [lECT. IX. vertebral column to ten ounces, and the calomel and opium were continued as before. The next day, the endocardial and the exocardial murmurs being the same, and the pulse being just as feeble and frequent (140) as it was, the cough, and palpitation, and proocordial pain, and pain in the joints were all diminished. The gums were slightly sore. On the next day the pulse and all the general and local symptoms were the same, while the salivation was on the increase. But on the next the countenance manifestly less anxious, and the pulse reduced for the first time to 120, bespoke some favourable change in the essential conditions of the disease, although the auscultatory signs were yet unaltered. But it was deemed right still to give the calomel and opium every four hours, for the salivation was not yet profuse. It was now the 8th of May, the fourth day since the patient's admission. There was a remission of all those symptoms which denote progressive disease, and an apparent possibility of saving her life. This remission, however, only lasted two days. For on the 10th of May the pulse again rose to 140 ; the dyspnoea returned with pain in every part of the chest, as much on one side as the other, and before as behind. Auscultation found large and small crepitation diifused through both lungs. There was double bronchitis and double pneu- monia. The weakness was now so extreme, that no form of bleeding could be thought of. A large blister was ajjplied to the sternum, and the calomel and opium continued. The next day the dyspncea had become an indescribable anguish and struggle for breath. On the next the same dis- tress continued, when auscultation found the right side of the chest entirely dull to percussion, and no air entering into any part of the right lung, except at a small space opposite the scapula, where there was the loud puffing of bronchial respira- tion, and the bronchial voice, which amounted to pectoriloquy. I suspect the right pleura had become suddenly filled with fluid. The left lung still admitted air everywhere, but every- where with a crepitation. As to the heart, the endocardial murmur had entirely ceased, and the exocardial murmur remained alone. A short description will suffice for the four following days LECT. IX.] INFLAMMATION OF LUNGS WITH RHEUMATISM. 107 Salivation had run on to an excessive degree, and produced its worst distress. The fauces swelled, the tongue became too large for the mouth, and a stream of saliva was continually running from it. None but the erect posture could be borne night or day. The respirations were never less than 50 in a minute, or the pulse than 135. She was speechless, and when inquiry was made of her pains, she pointed to the epigastrium and right hypochondrium as their seat. In this state of things there was no room for further treat- ment. One great remedy, the mercury, though it was no longer given, was still in constant and unrestrained operation. In truth neither food nor medicine coidd be administered during these four days. Neither was it possible to make any effectual examination of the chest from fear of killing her if we disturbed the only posture in which she could breathe. On the 15 th of May, being still alive, a large blister was applied to the seat of pain, which she indicated in the epigas- trium. On the 16th she gave signs that her pain was relieved; her pulse had fallen to 120 ; her countenance had lost some of its distress ; the breathing was less difficult, and she could lie on her back. The next three days and nights were a period of comfort. No pain was felt. The respiration was easy and much less frequent, and there was hardl}'' any cough. The pulse had come down to 120. The salivation and all its attendant distresses were greatly lessened. Yet there remained still some pain in the limbs. The endocardial murmur again accompanied the systole of the heart, but the to and fro sound had entirely ceased. I could not bring myself to disturb her tranquillity by raising her in bed for the purpose of learning, by auscultation, the state of the lungs. Now there was a fair hope that the work of reparation had begun, and that it would proceed without further interruption ; but on the 19th it was found that such pain in the chest and dyspnoea had come on during the night as to prevent her lying or sleeping. She was still in the erect posture, and the pain and dyspnoea continued, and the pulse had run up to 140. The whole of the right side was absolutely dull everywhere as it was when the last auscultation was made. I ventured to draw a few ounces of blood by cupping glasses apj)lied to the back 108 CLINICAL MEDICINE. [lECT. IX. below the right scapula ; and ordered two grains of calomel and a quarter of a grain of opium to be taken that night and the next morning. The next day the dysj)noea was greatly diminished, and the pain within the chest was entirely gone. From this time conva- lescence proceeded slowly, but uninterruptedly. On the 30th the left lung had altogether recovered its healthy condition, and a feeble respiratory murmur was heard in every part of the right. The patient remained in the hospital several weeks longer, gradually recovering all the general conditions of health. She left the hospital with the right lung restored almost to an equal capacity of breathing with the left, and the endocardial mur- mur still accompanying the systole of the heart, and the exocardial murmur gone. (W. 22, p. 110.) LECT. X.] TREATMENT OF ACUTE RHEUMATISM. 109 LECTURE X. THE TREATMENT OF ACUTE KHEUMATISM CONSIDERED, TREPARA- TORY TO THE TREATMENT OF ITS ACCOMPANIMENTS, ENDOCAR- DITIS AND PERICARDITIS. — ACUTE RHEUMATISM SUCCESSFULLY TREATED, UPON DIFFERENT AND EVEN OPPOSITE INDICA- TIONS, AND BY DIFFERENT AND EVEN OPPOSITE REMEDIES. HOW THIS MAY BE WITHOUT DISPARAGEMENT OF MEDICINE AS A SCIENCE. THE TREATMENT OF ALMOST ALL CURABLE DISEASES NARROWED TO THE CHOICE OF A FEW INDICATIONS AND A FEW REMEDIES. — WHAT THE LOWEST AND WHAT THE HIGHEST OFFICE OF THE PHYSICIAN. THE HIGHEST ENGAGED IN THE TREATMENT OF ACUTE RHEUMATISM AND ITS INCI- DENTS. THE GROUNDWORK OF RATIONAL PRACTICE IS TO UNDERSTAND THE VALUE OF SINGLE INDICATIONS, AND THE POWER OF SINGLE REMEDIES. TREATMENT OF ACUTE RHEU- MATISM UPON INDICATIONS BELONGING SOLELY TO THE VASCULAR SYSTEM, AND SOLELY BY BLEEDING. — UPON INDI- CATIONS BELONGING SOLELY TO THE NERVOUS SYSTEM, AND SOLELY BY OPIUM. UPON INDICATIONS BELONGING SOLELY TO ABDOMINAL VISCERA, AND SOLELY BY CALOMEL AND PURGATIVES. All our inquiries, as far as tliey have gone, into the subjects of endocarditis and pericarditis may be very interesting, and all our speculations may be just and true. But however interesting, just, and true, they must not terminate here. Our patients at least have a farther concern with these diseases, and so should we — a concern, namely, how they are to be treated. Now, endocarditis and pericarditis are the same things in essence. They are both inflammations. And endocarditis and jjericarditis are annexed to the same pathological condition of the constitution at large. They both belong to acute rheumatism. Moreover, they often occur together in the same subjects. Thus the treatment of both is by the same remedies, and may be spoken of together. 110 • CLINICAL MEDICINE. [lECT. X. But the treatment of the general pathological condition out of which they both spring, first claims our attention. For the right or wrong management of the rheumatism may have a share in determining whether these, which for the present we must be content to call its incidents, shall or shall not take place at all. And further, if they do take place, what shall be their character, and what their degrees of severity. Acute rheumatism has experienced strange things at the hands of medical men. No disease has been treated by such various and opposite methods. Vena3section has wrought its cure, and so has opium, and so has calomel, and so has colchi- cum, and so have drastic purgatives. I speak of these remedies in the sense which medical men imply when they talk (as they sometimes do) of this, that, or the other thing being their " sheet anchor "; meaning that they rest upon it alone for the cure of the rheumatism, and employ other remedies either not at all, or for very subordinate purposes. And, indeed, I bear my testimony to the success of each of these different remedies, so far as that, under the use of each, I have seen patients get well. At the first view all this looks very strange. The cure, or seeming cure, of the same disease by different remedies, even by remedies which in their mode of operation have nothing in common, appears like luck or accident. At the first view it may shake one's faith in physic a little, and may a little excuse the pleasantry of some who choose to hint, that Nature is our best friend after all; for that, do what we will, she brings things to a prosperous issue in spite of our blind interference. But without disparaging the part that Nature plays, I here see no fair subject of ridicule, and no fair reason for distrust of methods of rational treatment. The first maxim of all rational practice is, that Nature is supreme ; the next, that Nature is obsequious. The end, whether bad or good, death or recover}^, and every step and stage conducive to it, are the unquestionable work of Nature. But Nature, in all her powers and operations, allows herself to be led, directed, and controlled. And to lead, direct, or control for purposes of good, this is the business of the j)hysician. But how to do it best, he has to exercise a choice of modes and means in every case, which, though never exempt from the possibility of error, becomes less fallible by the teaching of experience. LECT. X.] TREATMENT OF ACUTE RHEUMATISM. Ill Tliis choice leads, and always will lead, to diversify of practice, which in no way disparages, but rather tends to enlarge and to enrich the resources of our art. It is not possible that the treatment of diseases shall be ever set at rest by the consent of physicians, or that fixed and uniform plans and remedies shall ever be adopted in cases bearing the same nosological name and character. At least it cannot be until each disease has its own specific antidote, or until each has disclosed some seminal principle from which it springs, and shown where it is, and what it is : some principle, too, it must be which is within reach, and which is destructible and easily destroyed. But we know very little about the seminal principle of diseases, and that little serves to show that no sooner does it enter the body (as in the case of contagion), than it is gone at once beyond our reach. It germinates in secret. It spreads itself abroad in secret. And when, at length, it excites various organs and systems to extraordinary modes of action and suffer- ing, then, and not sooner, begins our knowledge of a present disease, and our power of interfering with it. In truth, these modes of action and suffering are to us the disease. They are, moreover, our only objects of medical treatment. In cases of fever from contagion, in cases of inflammation, which is independent of external violence — spontaneous in- flammation, as it is called — much must have been going on covertly within the body before those modes of action and suffering arise, which are plainly cognisable by us, and which we can interfere with. But coming in with our knowledge and our treatment when we do, and late as we may seem to do, we are nevertheless soon enough with both to perform the jDroper work of physicians, and to withhold the disease from terminating in death or disorganisation. For it is by these actions and sufferings — it is by the actions and motions of blood-vessels, or by the feelings and susceptibilities of nerves, or by the special functions of particular organs, such as the stomach and bowels, the liver and kidneys, being extraordinarily exalted or extraor- dinarily depressed, or variously disturbed and perverted, it is by one or by several of these that diseases, of whose seminal prin- ciple we have no knowledge, declare their existence, and denote their progress and tendency ; and it is by and through the 112 CLINICAL MEDICINE. [lECT. X. same that they are brought into a capacity of treatment and of cure. The vascular system as a whole, and the nervous system as a whole, and the particular organs indicated, are in an especial manner within the reach and power of medicine. It is by remedies operating through some of them that nearly all curable diseases are in effect cured. But our present business is only with the treatment of acute rheumatism. Yet these general remarks, introductory to it, will nofc, I trust, be thrown away. For the treatment of acute rheu- matism, above all other diseases which can be named, is a thing to put the physician and medicine itself to the trial of what they can really do. Here are no specifics at hand. All proceeds upon rational calculations ; upon the right choice of purposes to be fulfilled, and the right choice of means to fulfil them. Acute rheumatism is often such in itself and such in its appalling incidents, as to need from time to time that medicine should put forth the full compass of all its powers. Every organ or system of organs which, either directly or indirectly, can receive the impression of remedies, are from time to time called to bear all that they can possibly endure ; and it is often only when the powers of medicine are pressed even to the verge of destroying life, that life is saved. If the treatment of acute rheumatism ever come to this, it is riffht to know what we are about when we undertake to treat it. It has been said that, in the treatment of acute rheuma- tism, one trusts entirely to venaesection and cures it, another to opium and cures it, and another to drastic purgatives and cures it. Here, among several indications which offer themselves to his choice, the physician takes a single one, and makes it the sole mark and scope of his practice, trusting that, when he has effectually attained it, the complex actions and sufferings which constitute the disease will be brought to an end. Thus he takes the high vascular action of acute rheumatism, and sees the whole disease represented in it, and is solely intent upon subduing it by venisection, expecting that, as he pulls down the circulation, the fever, the nervous disquietude, and the pain, and the swelling will all cease, and the various secreting organs of the body will resume their natural functions, and that thus the actions of health will gradually supersede the actions of disease. Or he takes the nervous disquietude and the pain of LECT. X.] TREATMENT OF ACUTE RHEUMATISM. 113 acute rheumatism as the representative of the entire disease, and deals with it accordingly, being solely intent upon moderating- them with opium, and expecting that, as they subside, the high A-ascular action and the fever and the swelling will subside along with them, and that the secretions will return to their healthy measure and kind. Or ho takes the state of the several secre- tions, their deficient quantity, and their unhealthy quality, as the rej)resentativc of the entire disease, and so addresses his treatment to those organs whose secretory functions are more immediately within the reach of medicine, to the stomach and bowels and liver, and he gives large and repeated doses of calo- mel, and follows them with large and repeated doses of purgative medicine. This he does, and this is all that he does ; and having done it effectually for a few days, and obtained very large and bilious evacuations, he expects that the fever, and high vascular action, and nervous disquietude, and pain and swelling will all cease, and the patient will be well. Ijet me repeat my testimony to the success of this practice in acute rheumatism; the practice, namely, of choosing some single indication, and steadily pursuing it to its fulfilment. It is a very rational practice. It is founded upon experience, and it compasses its end by very simple means ; and the manner of its successful operation may be well conceived, if it cannot be entirely explained, in the present state of our knowledge. Disease is a series of new and extraordinary actions. Each link in the series is essential to the integrity of the whole. Let one link be fairly broken,' and this integrity is spoiled ; and there is an end of the disease ; and then the constitution is left to resume its old and accustomed actions, which are the actions of health. But, you may ask, Is the treatment of acute rheumatism really so plain and simple an affair in all cases ? Is there nothing else to be done, but out of several purposes (or indica- tions of treatment, as we call them) to choose judiciously some single one, and pursue it resolutely and effectually by the simplest means? And is this the practice to which the cure of the disease may be safely trusted in all cases? Certainly not — cer- tainly in a small proportion of them only. But it is not without reason that I have dwelt upon this practice of single indications and single remedies. For, though 114 CLINICAL MEDICINE. [lECT. X. capable of being strictly followed in a few cases only, it contains a principle of large application, which helps and furthers the treatment of aU cases of this disease, and of many diseases besides. The lowest office of medicine is to minister to mere ailments ; and this is most effectually done by telling people what in their ordinary mode of living is injurious, and warning them against it. But inasmuch as injurious things are commonly very pleasant things, people are reluctant to leave them ofi' at our mere bidding. Hence in this, which is their humblest province, small credit upon the whole has been gained by the best physicians. The advice they have to give is much too simple for the world to accept upon the credit and character of well instructed and honest men. It needs to be enforced, not by the art which they do practise, but by the mystery which they do not. For no sooner does the same recommendation of abstinence from what is injurious gain the help which it needs from the mystery of homceopathy (a mere name, importing the discovery of something unintelligible, and importing it for the popular enlightenment in Greek) than compliance becomes easy, cures multiply, fame vociferates, the glory is great, and great too is the emolument. But the highest office of medicine is to minister to diseases, which, by themselves or by their incidents, go directly and rapidly to the destruction of life. And this is not to be done by begging peoj)le to be reasonable and abstain from what is wrong, and cheating and cajoling them into compliance. But it is a business for wise and cautious men alone to meddle with. The powers of art must be brought to overrule the operations of nature by force. To know these powers and how to wield them to such a purpose is an affair beyond all trick and all skill of practising upon the fancies of mankind. It can onl}^ proceed from a faithful and candid search after truth by each of us for himself according to his opportunities, and from a ready com- munication of what we believe to be the truth by all of us among one another, and from a comparison of their experiences and conclusions among the best minds. Now the highest office of medicine, in the sense explained, is engaged in the treatment of acute rheumatism and its inci- dents. At every step of its treatment, principles are involved LECT. X.] TKKATMENT OF ACUTE RTTEUMATISM. 115 whicli may bo transferrccl to the treatment of almost all diseases in which medicine plays an indispensable part. While, there- fore, I proceed to tell you of the management of acute rheuma- tism, you must consider me as illustrating the general power of remedies by this example, and so be prepared for any general remarks I may let in as I go along. Well, then, I am persuaded that when the physician is called upon to perform great things, even to arrest destructive disease, and to save life, his skill in wielding the implements of his art rests mainly upon the right imdcrstanding of simple and single indications, and of the remedies which have power to fulfil them. To know that, in any cases of acute rheumatism, the cure of the entire disease is accessible through the blood-vessels alone, by subduing their too forcible action ; or accessible through the nervous system alone, by moderating its dis- quietude, and abating pain ; or accessible through the stomach and bowels and liver alone, by stimulating them to a very largo amount of secretions ; and to know, moreover, that in any cases vensesection alone will fulfil the first purpose, or opium alone will fulfil the second, or calomel and aperients alone will fulfil the third : to know all this is the best preliminary step towards enabling us to deal safely and successfully with other and more numerous cases, which need a more complex method of treatment, and require that all these important purposes be pursued simul- taneously, and all these great remedies be made confederate for the cure of the disease. As to the first of these great remedies, and the indications for employing it, I know no disease in which febrile heat is greater, and the pulse harder, fuller, and more forcible, than in acute rheumatism. What, then, are the signals for copious blood-letting, if these are not ? And together with heat sq great, and the pulse so hard, so full, and so forcible, unques- tionable inflammation is present in various parts of the body ; and what can further demand and justify copious blood-letting, if this does not ? But let us pause and consider awhile. When inflammation is unquestionable, and when it has newly arisen, and with it fever and excess of vascular action, the amount of this fever and vascular action becomes the measure of its treatment. And it becomes so, because it is in truth the measure of the 116 CLINICAL MEDICINE. [lECT. X. inflammation itself, i.e. the measure of its force, and the rate of its progress towards whatever ci'il event it may tend, either according to its own nature, or according to the nature of the parts it occupies. In most parts of the body such an amount of fever and vascular action, as usually accompanies acute rheumatism, would denote inflammation tending rapidly to its worst event — to some kind of destructive disorganisation. It woidd so in the brain ; it would so in the lungs ; it Avould so in the liver. Therefore, in inflammation of the brain, the lungs, or the liver, such fever and such vascular action would call for any quantity of blood-letting that might be needed to subdue them. For their abatement alone would show the inflammation abated, and its destructive progress arrested. But in rheumatism the inflammation (I mean the external characteristic inflammation), either from its own nature, or from the structures it occupies, tends to no such destructive event. It has its primary seat (there is reason to believe) in fibrous structures, and the swellings which accompany it are produced by serous efi'usion, partly into neighbouring cellular texture, and partly into the synovial membranes of bursa) and joints. And in the vast majority of cases, however severe be the disease, and however long it may last, the local mis- chief stops with these eflusions, and the structures engaged, fibrous, cellular, and serous, undergo perfect reparation, and the joints are eventually uninjured. In acute rheumatism, therefore, the excessive heat, and the full, hard, and forcible pulse need not hurry us into a deter- mination to bleed to any amount that may be requisite to subdue them, Avith the ultimate purpose of withholding the inflammation from a destructive event. But the aim and in- tention of the remedy are rather respective to the disease as a whole, than to the inflammation attending it. It would be otherwise if the liver, the lungs, or the brain were inflamed, and not the joints. With respect to the disease as a whole, then, let us consider the uses of this remedy. I have seen people enormously bled in acute rheumatism, and their entire disease swept away at once, and health restored rapidly. And the practice which will do this, is it not a splendid and a tempting practice ? LECT. X.J TREATMENT OF ACUTE IIHEUMATISM. 117 Again ; I liavc seen people enormously bled in acute rlicu- inatisni, and llieir disease swept away at once ; but they liavc ibrthwith g-one raving mad. .Vnd a practice wbich will do this, is it not a hazardous practice ? And again ; 1 have seen people enormously bled in acute rheumatism, and no single pain has been mitigated ; but the disease has continued for an unusually long time in its acute, ^ind then has degenerated into its chronic, form. And a prac- tice that has this issue, is it not a doubtful practice ? These facts are instructive. They warn us to beware of large bleeding in acute iheumatism. Yet the immediate indi- cations for it now, when it woidd (I believe) be erroneously prescribed, are the same upon which it would be entirely justi- fiable in some other diseases, viz. the extreme heat and the extreme fulness and hardness of the pulse. But then in those •other diseases, all hazards sink into insignificance compared with the hazard of progressive inflammation in a vital organ. Large bloodletting, however, has hazards of its own great enough not to be incurred except in exchange for those which are far greater. Now, one chief hazard of large bleeding is from the shoclc it is apt to communicate to the nervous system ; and it is thif> which we should especially seek to avoid, when we employ vena^section in acute rheumatism. Venisection is often needed ; needed for what no other remedy can perform towards the cure, and therefore not to be omitted. It is needed especially to abate high vascular action. But no such thing must bo thought of as bleeding and bleeding, until the large pulse becomes small, and the hard pulse soft. For, to bring about this, blood must be let flow to a terrific amount. Fulness and hardness of pulse are indeed express characteristics of acute rheumatism, rising to superlative degrees, and enduring perti- naciously, and resisting stubbornly the power of remedies to pidl them down. To abolish them at once or speedily in the severer cases, is hardly possible by any counteracting means which medicine can safely employ. They are above a match for them all, and they trill endure their time. They are above a match even for vena3section, unless it be pushed with a desperate hand, careless and reckless of new dangers to life. Upon the whole, then, the practice which proposes to 118 CLINICAL MEDICINE. [lECT. X. compass the cure of acute rheumatism at whatever cost of blood may be needed to fulfil the indication of absolutely subduing the force of vascular action, is a very imcertain and a very dangerous practice, although success has undeniably attended it in some instances. Still venoosection is among the remedies of acute rheuma- tism, not needful in all cases, but expedient in many. It is expedient to abate vascular action when it is excessive, and when the patient is robust and young, and the disease has arisen accidentally in a healthy constitution. And these, indeed, are its most common conditions. Acute rheumatism is most frequently found in the young, the robust, and tho previously healthy. But however the severity of the disease, and the age and constitution of the subject, may invite the remedy, this caution especially must be observed in its use ; take care that in abating vascular action by venisection, you do not communicate a shock to the nervous S3\stem. If you do, you are likely to disturb the just tenor of the disease, and then some untoward circumstance, which is quite foreign to it, may arise, and some of its worst events may ensue. But in the young, the robust, and the previously healthy, where vascular action is not excessive, and in the old, the feeble, and previoiisly valetudinary, even where it is, veni- section is best omitted. There are other remedies, which, without the help of vena-section, may be trusted for its safe and effectual cure. Summarily then I would venture to say of venisection, employed under the most suitable conditions, and in the most suitable measure, that it is to be trusted, rather as preparatory^ and auxiliary to other remedies, than for its own exclusive remedial power in acute rheumatism. It very often renders the disease more curable by other means ; but it seldom cures the disease itself. But it has been said that the cure of acute rheumatism is accessible through the nervous system alone, and by means of opium. No disease can be mentioned of which pain is a more promi- nent and abiding characteristic ; hardly any in which it is more severe and more extensive, and occupies more situations at a time. It is, moreover, the sort of pain which rouses and excites, LECT. X.] TREATMENT OF ACUTE EIIEUMATISM. 119 and however long it may continue, even for several weeks i)er- liaps, it still rouses and excites to the last. This is a circumstance which deserves our notice. The pain which is annexed to inflammation of internal and vital organs, however it may at first rouse and excite, soon begins to depress, then to exhaust, and then to overwhelm ; and as the disease proceeds, and as the vital powers fail, the nervous system sinks into an absolute incapacity of feeling pain at all. But the pain which belongs to the inflammation of external parts and parts not vital, continues much longer to rouse and to excite, becavise life itself, or the springs of life, continue much longer unassailed. Thus, in acute rheumatism, the ner- vous system and the vascular system, the great sources of action and feeling, being unharmed, feel and resent the disease purely as a stimulus. As long as the inflammation is of the fibrous, cellular, and serous structures in the neighbourhood of joints, and of them only, the brain and the nerves, the heart and the blood-vessels, and all that feels and all that acts within the body, have their susceptibilities and their movements raised, quickened, and invigorated. All within the man is (as it were) doubly alive; and every thing that hurts is doubly felt, and doubly resented. If, then, such be the pain, and such the long and undimin- ished capacity of suffering in acute rheumatism, well might physicians, in their treatment of it, look to such remedies as abate pain, and exercise a sedative influence upon the nervous system. They have, indeed, looked especially to opium. And opium, prescribed with these intentions, has encountered the disease singlehanded and successfully. But how prescribed, and in ivhat measure ? A grain of opium given to a man in health and at ease, woidd continue to be felt for twenty-four hours ; not so when it is given to a man in constant and severe pain. The same quantity would now be felt little or not at all, or for a much shorter time. The nervous system may become wild with suffering, and then it is not to be soothed and coaxed into quietude, but to be subdued. It is with the nervous system exasperated by phy- sical, as it is with the mind exasperated by moral, pain. The maniac cannot be pacified by persuasion ; he must be held 120 CLINICAL MEDICINE. [lECT. X. down by some power which he cannot resist ; and even then he is not absolutely still. The victim of cancerous disease must be overpowered and stupified with opium, and even then he is not altogether insensible to his pain. The pain of acute rheumatism will hardly bear to be com- pared with that of cancer. But it is a very sharp and constant pain, and severely aggravated by the least movement and the least touch. The dose of opium must be large, and pretty often repeated, which is to reach it and lessen it. In the severer cases, and when the whole treatment of the disease is left to the sole remedial power of opium, the measure and fre- quency of its dose must be enough to subdue, if it is to have a fair chance of tranquillising. When iirst, and for a few years after, I became j)hysician to an hospital, opium was my remedy in all cases of acute rheu- matism, excepting such as presented some special circumstance to forbid its use, or to require a different treatment. My single purpose was to abate pain, and to quiet the nervous system. The dose I employed varied from two grains to five or six in twenty-four hours. I began with one grain every twelve hours. Then, as the patient seemed to bear it or to need it, I gave a grain every eight hours, then every six, and then as often as every four. There were many cases for which a grain every twelve hours, or two grains in the twenty-four, were quite enough. And there were few for which a grain every four hours, or as much as six grains in the twenty-four, were needed. The majority, however, required a grain every eight or eveiy six hours, or three or four grains in the twenty-four. In the mean time, while I thus employed opium immediatehj to abate pain and quiet the nervous system, and ultimately to cure the disease, I had no other care except to keep the bowels from being bound, but not to purge them. And now, perhaps, you may be disposed to suspect, after aU, that this practice had nothing positiveij^ remedial in it ; that the progress and duration of the disease were in nowise affected by it ; and that only its pains were thus rendered more tolerable, while it wore itself out by a spontaneous and unassisted reparation. But I am very far from thinking so. It is true that I cannot produce a certain number of cases treated by no remedy at all, and compare them in their results with a certain number of LEU'r. X.] TREATMENT OF ACUTE RHEUMATISM. 121 cases treated by opium. I do not know that I over saw a case of acute rheumatism left entirely to itself. But I have seen many cases, if not altogether abandoned to nature, very little assisted by art. When I was a student, acute rheumatism in the hospitals of London was commonly treated thus : — A dose of liq. ammonia acetatis was given thrice in the twentj^-four hours, and a moderate opiate at night. Such treatment cannot be called nugatory, or tantamount to no treatment at all. It might even, where pain and vascular action were small, have been quite treatment enough, and have justly had the credit of the cure. But in the majority of cases it could have done very little. In the majority there was more of action and suffering than it coidd have j)Ower to counteract. The means themselves had no unsuitableness to their end; but there was a shortcoming in the way of using them. The means had plenty of remedial force in store ; but that force was not brought out, as it might have been, by the time and measure of their application, and so made more a match for the force of the disease, and more available for its cure. Accordingly, by this treatment (to speak of its results as favourably as possible), the acute rheumatism was seldom brought to a close in less than six weeks. It took full six weeks, upon an average, to get the patient out of bed and fairly upon his legs again. And then he had still his strength to regain that he might be fit for work. Whereas, under the treatment by opium (given not merely in a moderate dose and at night only with the hope of procuring sleep, but at more frequent intervals and in quantity proportionate to the amount of pain and nervous disquietude it had to subdue or to mitigate) the disease has commonly ended, and convalescence has fairly begun in half the time. Such, then, is my experience of the curative impression, which may be conveyed to the entire disease solely through the nervous system, and solely by means of opium. And let me add that, considering what acute rheumatism is in the majority of cases, and what it needs, and what it will bear, I regard the indication found in the nervous system to be upon the whole a safer and better guide for its treatment than that found in the vascular, and opium uj)on the whole to be a safer and better remedy than vensesection ; if we are to follow one of the two indications, and to use one of the two remedies only. 122 CLINICAL MEDICINE. [lECT, X. But recollect, I am not recommending that acute rheumatism be treated exclusively, either according to the one or the other of these indications; or exclusively, either by the one or the other of these remedies. I am only now showing the value of each indication, and the power of each remedy separately, in order that you may better understand and apjireciate other more complex methods of treatment in which both indications are followed, and both remedies are employed concurrently. The third plan remains to be considered, which, passing by the vascular system and the nervous system and all indications of treatment to be found in either, fixes upon the liver and the abdominal viscera, and seeks to compass the cure of the entire disease by remedies addressed solely to them. The immediate object of this practice is to obtain from these organs a vast augmentation in the amount of fluids which they secrete, and to evacuate it outwards. The mode of proceeding is this. Ten grains of calomel are given at night, and a draught of salts and senna on the following morning; and the same are repeated night and morning as long as they are well borne, and continue to produce the effect desired. The evidence of their being well borne is, that they occasion little or no distress in their operations ; and the efiect desired is, that they bring away abundance of a dark or deep-coloured bilious colluvies from the bowels. As long as such are the feelings of the patient under their operation, and such their efiects, the medicines may still be given, and still are needed. The evidence of their being ill borne is that they occasion tormina and tenesmus, and scalding of the rectum; and their effect not to be desired is, that they bring away pure bile, or transparent mucus or blood. When such begin to be the patient's feelings, and such the products of the medicines, this plan of proceeding must be immediately given up. Now, it is for three or four nights and mornings consecu- tively that this dose of calomel and this purgative draught will be well borne in the majority of cases; and the better they are borne, the more likely they are to do good. But the dose of calomel need not be exactly ten grains, neither more or less. Finding ten do too little, the next night I have given twenty. Finding ten do too much, the next night I have given five: only I would remark, that the dose of LECT. X.] TREATMENT OF ACUTE RHEUMATISM. 123 calomel must bo a considerable dose. If your patient will not bear five grains, this method of treatment is not for him, and the sooner you back out of it the better. When the full dose of calomel and the purgative draught have been given for three or four successive nights and suc- cessive mornings, and have been well borne, and have had the effect which we desire upon the liver and the abdominal viscera, it sometimes happens that the same remedies arc thenceforth no longer needed, and can no longer be borne in any dose. They have well fulfilled their immediate i:)urpose, and done all they can do for the ultimate cure. But sometimes they are both needed, and can be borne a little longer, yet in a smaller dose. A grain or two of calomel at night and a moderate aperient in the morning still continue to be required for procuring daily evacuations. As this plan of treatment works prosperously day after day in its immediate effects, so day after day it gives an earnest of the remedial impression it is exercising upon the whole disease. It abates the fever, it softens the pulse, it reduces the swelling, and it lessens the pain. In short, it subdues the vascular system like a bleeding, and pacifies the nervous system like an opiate ; and often in the course of a week the acute rheuma- tism is gone. In three days there is often a signal mitigation of all the symptoms ; and in a week I have often seen patients, who have been carried helpless into the hospital, and shrieking at the least jar or touch or movement of their limbs, risen from their beds, and walking about the ward quite free from pain.* Of this plan, often so striking in its operation, and often so satisfactory in its results, I have some further remarks to make. It is called the purgative plan ; yet its purj)ose is achieved by calomel and purgatives conjointly. The purgatives would not answer the end without the calomel ; of that I am quite certain : neither would the calomel answer without the purgatives, unless it produced of itself ample evacuations from the bowels. It is probable, in short, that the remedial efficacy of the plan resides essentially in the calomel : in calomel, however, not as mercury, * The profession owes tliis practice to Dr. Chambers. Its power and efficacy are displayed in numerous diseases besides rheumatism, and in their most perilous emergencies. 124 CLINICAL MEDICINE. [lECT. X. but as itself — calomel. If the specific effect of mercury — saliva- tion— arise, it is not only beside our purpose, and against our wisb, but it begets a serious hindrance to the use of calomel in sufficient quantity for the end in view. Thus the whole plan is frustrated. Having begun one plan of treatment, we are obliged to take up with another. Time is lost, the case is per- plexed, the disease is prolonged, and the patient perhaps injured. This is an accident liable to attend the present plan of treat- ment. It ivill take place sometimes. It is quite unavoidable. Men bear no mark that I know of denoting their great or their small susceptibility to mercury. Of this we must take our chance, knowing that, be the natural susceptibility what it may, fevers and inflammations seem counteractive of it to the estent sometimes of holding it in check, sometimes of suppressing it, and sometimes of abolishino- it altogether. The curative effect of calomel then being annexed to its operation uj^on the abdominal viscera, we should seek by all means in our power to determine it thither. For this purjDOse let it neither dwell too long within the bowels, nor be too soon hurried through them. Ten grains of calomel being given, should be left ten hours to do its own work alone and undis- turbed. Its proper work is to impart a peculiar stimulus to the liver and the intestinal canal, and so to promote a large flow of bile and various secreted fluids into the bowels. Time is required for all this ; and the purgative should be delayed until the excrementitious matter is first formed and accumulated, and ready to be brought away. Now, if in the treatment of acute rheumatism you were to choose one indication and abide by it, and were to trust to one class of remedies, and to it only, you would find more cases that admit of a readier cure by the method now described, than by either of the two former. You would find the aggregate of morbid actions and sufferings, which constitute the disease, more surely reached and counteracted, and more quickly abolished by medicines operating upon the abdominal viscera only, than by those which influence either the blood-vessels only, or the nerves only. You would find in calomel and purgatives a better remedy than either veniesection or in opium. LECT. X.] TKEATMKNT OF ACUTE lUlEUMATISM. 120 Tlicrc mio'lit bo occasions and circumstances wlicn ilic blood- vessels or tlio nerves would oft'er the best channels, and venuj- section or opium would offer the best means of cure. But the occasions and circumstances presentino- themselves would rather lead you to attempt the cure through the abdominal viscera, and by calomel and purgatives. Another Avord upon this plan of treatment, and I have done. It has appeared to me not only to bring this disease to a con- clusion in a shorter time, but to prei)are the way for a more rapid convalescence than the other methods. When the cure of such a disease as acute rheumatism is largely promoted, or altogether achieved, by calomel and aperi- ents, it will (I rather think) often turn out upon enquiry, that the patients prior to their attack were in a state of health which needed, or would have been none the worse for, a good purging. Many and many a man have I known, who, having suffered fever of high vascular action^ and been successfully treated by remedies addressed day after day exclusively to the bowels, has recovered rapidly, and thenceforth has enjoyed better health than he had known for years before. Now, is this the critical event of the fever, or is it the effect of the remedy? I believe the latter. I believe that his fever, severe and perilous as it might be while it lasted, was to him after all a happy event; inasmuch as he gained by it that medical discipline which he most needed, and which, but for it, he would not have had the benefit of. Seeing then that by the use of calomel and purgatives in the manner described, patients have so soon thrown off their disease, and have so soon resumed the conditions of health, do I therefore finally recommend this last method as the common anchor of your treatment in acute rheumatism, and allow a place for either of the other two only when exceptions call for them ? Assuredly not ! The best single method, or the best single remedy, is not so good but that it may be made better by the help of other methods and other remedies. It is true that I have seen the bleeding plan, the opiate plan, and the purgative plan each used alone. I have myself used each alone, and the two latter largely ; and I have told you what, according to my belief, is their value absolutely and com- paratively. 126 CLINICAL MEDICINE. [lECT. X. But tliere is a plan of treating acute rheumatism whicli is juster and safer, and applicable to more cases, and more successful than any of tliem. And that plan is a compound of all three. This compound method, while it works with all the means which have been recommended, stops short of what is harsh and excessive in their use, and yet compasses with more certainty the successful result. For I believe, that in the treatment of this disease, and in the same cases, by the judicious use of opium you may spare blood, and by the judicious use of bleeding you may spare opium ; that by calomel and purgatives properly administered, you may make bleeding and opium less needful, and that by bleeding and opium discreetly employed you may have less to be effected by calomel and purgatives. Hitherto you have seen how, in the management of acute rheumatism, you may deal with bloodvessels, and with nerves, and with secreting organs separately, and with what effect. Presently you will see how and with what effect you may deal with them simultaneously; and how your different remedies once set a-foot, and pursuing different paths, meet and end in one purpose, — and that purpose the cure. " As many arrows, loosed several Avays, Fly to one mark." LECT. XI.] TREATMENT OF ACUTE RHEUMATISM. 12 LECTURE XL TllEATMENT OP ACUTE RHEUiMATISM CONTINUED. — ITS TREATMENT ACCOKDING TO MIXED INDICATIONS, AND BY MIXED REMEDIES. THE BLOOD VESSELS, THE NERVES, AND THE ABDOMINAL VISCERA, BROUGHT SIMULTANEOUSLY UNDER THE REMEDIAL IMPRESSIONS OF BLEEDING, AND OPIUM, AND PURGATIVES. ADVANTAGES OF THIS TREATMENT. OBSERVATIONS ON THE USE OF COLCHICUM. REPRESENTATIONS OF MEDICAL TREAT- MENT OFTEN FALLACIOUS FROM BEING TOO FAVOURABLE. — ■ COMMONLY DRAWN FROM GOOD CASES ONLY ; NOT FROM ALL CASES, GOOD AND BAD. THE GOOD CASES OF ACUTE RHEUMA- TISM, OR THOSE FAVOURABLE FOR MEDICAL TREATMENT. THE BAD CASES, OR THOSE UNFAVOURABLE FOR MEDICAL TREATMENT. NOTICES OF CASES IN WHICH TREATMENT SUCCEEDS OR FAILS, CONTRARY TO EXPECTATION. NOTICE OF MEDICINES, WHOSE OPERATION IN THIS DISEASE IS UNQUESTIONABLY REMEDIAL, YET NOT UNDERSTOOD. The vascular system, the nervous system, and tlie abdominal viscera are the channels through which, and venaesection, opium, and calomel with purgatives, are the means by which, acute rheumatism is treated and cured. Treated and cured, it may be, through any one of these channels, and by any one of these means, singly. But it may be through more than one of these channels, and bi/ more than one of these means, conjointly. Or it may be through all of them, and bi/ all of them, together. The practice which chooses and follows a single indication, and chooses and trusts to a single remedy, is indeed a plain and intelligible, but a harsh and subduing, practice. In cases of ordinary severity, if the entire disease is to be effectually reached and counteracted through the bloodvessels alone, a single vencc- section of large amount would be needed, or a venassection of smaller amount once or twice repeated. If through the nerves alone, four or five grains of opium would be needed in each 128 CLINICAL MEDICINE. [lECT. XI. twenty-four hours. If through the abdominal viscera alone, a large dose of calomel and a draught of senna and salts would be required night and morning for three or four successive days. Here is much violence done and felt as the price of success. Vencosection, single-handed, to do its work successfully, must strike with the violence that shocks, opium with the violence that oppresses, calomel and purgatives with the violence that hurts and irritates. It cannot be otherwise. If one remedy is to do all, it must be heavily charged and resolutely driven home to its purpose. But each remedy may be charged with less force, if one be made auxiliary to the other. Bloodvessels, and nerves, and abdominal viscera may be severally spared the shock, the oppression and the pain, if they are subjected simultaneously to their several remedies. Thus, in cases of ordinarj^ severity, a single moderate venaesection instead of several, or instead of one of large amount ; two grains of opium distributed over twentj^- four hours instead of four or five grains ; moderate doses of calomel followed by purgatives instead of very large doses given and repeated for three or four successive nights and mornings, comprise a treatment powerful enough, and always safe, and generally successful, and not painfull}^ felt. Perhaps it would come pretty near the truth to say, that two-thirds less of blood- letting, two-thirds less of opium, two-thirds less of calomel and purgatives, are needed when they are all made confederate for the cure of acute rheumatism, than when any one of them is employed alone. In several cases, however, the proportion of the remedies to each other would vary. Sometimes more, sometimes less, blood- letting would be called for, and often none at all. So, too, more or less opium, and more or less of calomel and ajserients. I have remarked of the effect of blood-letting in acute rheu- matism, that it belongs to it rather to render the disease more curable by other remedies than to cure it itself. Blood-letting, therefore, properly takes, the lead of other remedies in point of tiine. For if it be necessary, the whole treatment must tarry, and other remedies come short of the good of which they are capable, until it is performed. On the first view, then, of the patient, the immediate question is — Should he be bled ? and if so, to what amount? This question it would be foolish and LECT. XI.] TREATMENT OF ACUTE EIIEUMATISM. 129 dang'crous to pretend to settle any where but in the wards of the liosi:)ital, and with the very patient before you, and your finger upon his pulse. "Well, and what then ? Why ! then, if you judge that there is more force of circulation than calomel and purgatives operating upon the bowels, aided by the soothing effects of opium upon the nervous system, will be able to abate, you may bleed. This is the best direction I can give. But, be it the best and wisest that can be given, it must be utterly useless never- theless, except to those who are or shall be constantly busied about the sick. For by this direction, whether to bleed or not to bleed is made to wait upon a judgment which must be formed uj)on two points. And these two points nothing but the most constant bedside experience can make sure of. They are these — the exact force of the circulation, in a particidar instance, to be ascertained by the pulse ; and the probable power of calomel, and purgatives, and opium to reduce it, to be estimated by the ordinary effects of the same remedies. I do not wish to exaggerate the difficulties of medical practice ; neither do I wish to conceal them. I am sure you will never surmoimt them, unless you first feel and acknowledge them. And some practical experience is needed even for this. When from the pulse I have considered venajsection neces- sary to bring down the circulation, the loss of between twelve and sixteen ounces of blood has generall}^ been enough to answer the purpose in view ; and the venisection has seldom been repeated. The opiimi, and calomel, and purgatives I have been accus- tomed to give in combination thus : — With the calomel admin- istered at night, according to its quantity, I have united more or less of opium. To ten grains of calomel I have added one grain of opium ; or to five of calomel I have added half a grain, continuing to give them together in the same proportions, night after night, as long as they are needed. Then, on each succeed- ing day, when a large purgation of the bowels has been duly obtained, I have still given the opium alone, or with saline draughts, in doses of half or one-third of a grain, every five or six hours. And thus, with the larger quantity at night, and the smaller quantities during the day, about two grains of opium have been commonly taken in the course of twenty- four hours. 9 130 CLINICAL MEDICINE. [lECT. XI. Here, then, tlie vascular system, and tlie nervous system, and the abdominal viscera are all at the same time made to feel sensibly the impression of the remedy, but none of them is subdued by it. And while blood-letting-, and opium, and calo- mel with purgatives are all made confederate for the cure of the disease, none of them is given in excess. Now, I do not pretend to say, that this is just the measure, and just the relative proportion in which these several remedies need always to be emploj^ed for the cure of acute rheumatism. There are circumstances which would require them to be varied. But, apart from the patient, they cannot be represented intel- ligibly. As of venaasection, so of these other remedies, after the propriety of their use is already understood, the skill of using them remains to be learnt ; the skill which sees when to give a little more, and when a little less, often or seldom — when to bear heavily or lightly on the blood-vessels, when heavily or lightly on the nerves — and when to obtain larger purgation of the abdominal viscera. This is the skill which cures diseases and saves lives. And no man ever had it, who did not obtain it from his own self- teaching amid the emer- gencies of actual practice. There is a remedy much used, and of unquestionable benefit in the treatment of acute rheumatism, which I must not omit, to mention. I have not mentioned it sooner, having not been able to find a place for it among the remedies hitherto spoken of; for its curative properties are not, like theirs, constantly annexed to any known operation upon particular organs. But a remedy may have as just a claim to our confidence from our bare experience of its doing good (that experience being suffi- ciently large), as from our perfect insight into its mode of operation. Let it be observed, however, that any remedy which, work- ing in the dark, is nevertheless trusted for its ultimate efiects, requires to be administered with the greatest care. Even hecaufiC it works in the dark, therefore, whenever we venture to give it, the conditions of the malady should always be clearly those in \\diich it is known to do good; and further, because it works in the dark, therefore all the possible ways in which it may do harm should be foreseen and guarded against. With these remarks, I will proceed to tell you what I know LECT. XI.] TREATMENT OV ACIU'E KIIBIJMATISM. TU of tlio use of calehieum in acute vlioumatisin, for It is the remedy that I allude to. Colchicum, sing-le-lianded, cannot (I think) be safely trusted for tlie euro of acute rheumatism in the severer cases, but it can in the mikler ones; and I have so trusted it: yet I do not recommend the practice. Colchicum given alone has been slow, even in these milder cases, of making its curative impression. Many days have generally elapsed before it has produced any abatement of swelling and pain, of vascular action and of fever; and then, not until it has ber/ioi to purge smartly and fvcn paiufiiUij. JSTow these are hardly satisfactory conditions upon which to obtain the remedial effects of colchicum. For to purge by colchicum is to make it act as it does in its first degree of poisoning. Findina-, then, that in the milder cases I had no fair chance of obtaining from it the virtue of a remedy without running some hazard of it as a poison, it was much too dangerous au experiment in my eyes to commit the treatment of acute rheu- matism to it mainly or entirely in the severer cases. For now it must be pressed nearer and nearer to the verge of poisoning in order to bring it at all within the capacity of curing. But in all cases of acute rheiimatism, both mild and severe, the ])ractice prevails of giving colchicum, not alone, but as an auxiliary to other remedies. To bleeding and opium and calomel and purgatives, given in the manner specified, many would add colchicum. They would prescribe a grain of the acetous extract, or fifteen or twenty minims of the wine twice or thrice a day, some considering it to act sedativelj^ and as a special auxiliary to opium, and some specifically and with the force of an antidote, as it does in gout. I, too, use colchicum in acute rheumatism, but not after this manner. I reserve it for special emergencies; and then I employ it with a trust and confidence which I have in no other remedy. When by vensesection and by opium and calomel with purgatives, excess of vascular action, and fever and pain and swelling are abated, yet none of them are entirely abolished, but all still linger; or when pain and swelling do not subside at all in proportion to the abatement of vascular action and fever, which are considerably reduced, then I invoke the aid of 132 CLINICAL MEDICINE. [lECT. XI. colcliicum, and give twenty or five- and- twenty minims of tlie wine of the seeds or the root, twice or thrice a day, and I often find the disease proceed uninterruptedly to its cure. Again, when by the same ordinary course of treatment fever, pain, and swelling have been made to cease entirely, and have suddenly and unexpectedly returned, then I invoke the aid of colchicum, and give it in the same way; and a few doses aro commonly enough to dissipate the returning disease, and restore the conditions of health. This is a pure case of relapse. The relapse, however, very seldom reaches the severity of the original attack. Now on all such emergencies I have been accustomed to administer the remedy quite alone, uncombined with either alkali or opiate, so that the benefit which has resulted has been without question exclusively due to it ; and not only exclusively due to it, but due to it purely as colchicum in virtue of that mode of action (whatever it be) which specifically belongs to it. For the cure has followed suddenly, and not waited for any intermediate operation of the remedy upon the stomach and bowels. Thus I have gone as far as it is safe or profitable for you that I should attemj)t to go into the treatment of acute rheu- matism. The rest you must learn by watching the actual management of cases in the hospital. I can tell you how to manage a disease, but not how to manage a case. One man may learn the principles of an art from another's discourse; but he must learn its practice, not from hearing him talk about it, but from seeing him in the act of exercising the art itself. I must not dismiss, however, the treatment of acute rheu- matism altogether without making one or two additional remarks, for fear that in time to come you may fancy that I have not represented the matter quite fairly and honestly. When some years hence you have gained abundant experience of this disease for yourselves, I can well imagine you comment- ing upon me and my practice thus: — "It is all very well to talk of bleeding, and opiimi, and calomel, and purgatives, curing acute rheumatism, and setting patients upon their legs in a week or two; so they will, in many cases. But cases are frequently occurring, in which neither singly nor conjointly will they do any thing of the kind." LECT. XI.] TREATMENT OF ACUTE RHEUMATISM. 1;33 Now this I believe to be the common fault of writers and lecturers, and of all who in any manner, or any where, under- take to teach practical medicine, except at the bedside of the patient, that they give much too favourable a representation of their subject. And it arises after this manner. In whatever they say respecting methods of treatment, they proceed in the meanwhile upon the assumption, that they have always a good case to deal with, and are always called in at the right time. Not only do they proceed upon this assumption, but they do it without saying so. I can easily understand how, in order to give an intelligible account of the powers of medicine, it may be necessary to display it in operation upon states of disease which are most susceptible of its good impressions. But the teaching which proceeds upon these terms, whatever other merit it may have, is not the type of actual practice. For in actual practice there is no such thing as choosing your own cases — you must take the good and the bad as they come. Thus there are cases which present their indications of treat- ment so clearly and prominently, that medicine is sure of its aim, and in which all the conditions of time and opportunity are so favourable that, rightly directed, it cannot fail of success. These we call, in our peculiar language, good cases; meaning that they are such as we like to see and like to treat, and have an interest and hope in, and expect our reward in their speedy cure. But there are also cases in which there are no indications prominent or clear enough to become the special scope of prac- tice, and in which time and opportunity have been postponed or lost, so that medicine is never sure of its aim; or, if it should happen to take the right one, it could hardly expect to reach it. These we call had cases. We dislike them, and flinch from them, and can only bring ourselves to treat them as a matter of duty. Acute rheumatism has its good and bad cases; its cases, in which the right treatment is seen clearly and instituted con- fidentlj^, and pursued in full expectation of success, and success follows; and its cases, in which the right treatment is dimly discerned from the first, and the treatment which is adopted doubtfully, is pursued distrustfully, and ends in failure, or in a IPA CLINICAL MEDICINE. [lECT. XI. distant, tardy, and precarious restoration. Of these last I can scarcely do more than tell you that there arc such cases — I cannot describe them. Where the constitution of the patient is habitually cachectic, and he has no natural health to oppose to the casual incursions of disease, if that disease he acute rheumatism your treatment is apt to fail. Again, where the patient is seen late, and treated late, as in other diseases, so in acute rheumatism the best medical management is often imable to compensate for loss- of time, and thus it often fails. In turning over my records of this disease, I iind that very few cases came under my observation and treatment during the first week; that the great majority were admitted into the hospital during the second, and as much towards the end of it as the beginning ; that many were admitted in tlie course of the third, and some not until the fourth week, and even later. Again, independent of any fault in the natural constitution of the patient, or any mischance of time and opportunity in the application of the remedy, there are certain forms of the disease in which it bespeaks itself less amenable to medicine. There is a form of acute rheumatism in which pain, from its extreme severity, is out of all proportion to the accompanying fever and vascular action. And there is a form in which fever and vascidar action with most profuse perspiration and miliary vesicles are out of all proportion to the pain. Not only degrees of pain, l)ut its existence, in any degree^ must bo taken upon the testimony of the patient. And I have seen a few cases in which the complaint of it has been little or none at all, and the swelling of any joint has been little or none at all; and yet the fever has been characteristic of rheumatism in the highest degree, leaving some colour for speculation whether the disease were not in its essence a fever* Eoth these foims, that in which the pain exceeds the fever, and that in which the fever exceeds the pain, arc liable to he- * The real distinction Letween intianmiation and fever is found Ly ]\I. Andral in the constituents of the Llood. In intianiination its fibrin is always in excess ; in fever never. Thus acute iheumatism is pre-eminently an inflammation, and is taken altogether out of the category of fevers. — Hdiniatologie Pa ihologique. LIX'T. XI.] TREATMENT OK ACUTE RHEUMATISM. 135 liiigerinericarditis, being the accompaniment of acute rheumatism, is to be managed by the same methods and remedies as it would be, were it alone and idiopathic. And these methods and remedies are such as might not be employed at all, or certainly not to the same extent, in a rheumatism attended only by inflamma- tion of the joints. Now I admonish you that I am going to enter into bedside details. For I can teach you nothing unless I do, and you can leaim nothing unless you attend to them. Bloodletting, and mercury, and opium, are your remedies for these diseases of the heart. And so they are for acute rheumatism, irrespective Ll-XT. XIl] TKIvVTMENT OF THF. CVRDIAC AFFECTIOXS. 149 of inflauiniatiou of the heart. And so they arc for twenty diseases besides. Bat little practical instruction is conveyed siinply by announcing- the fact. For in each of the twenty diseases, nay, in each case of any one of thoin, they may need to be employed in different modes and measures. Thus they are only comiltloaalli/ curativ'c after all. But is not this almost us much as can be said of the application of any remedy to any disease P Conditions mix themselves with all medical practice. To know the disease and to know the rig-ht remedy, are only iirst steps towards the right treatment. The success, and even the safety, of practice come from knowing things which lie far beyond. Stop here, and you will soon find it much easier to kill a man with the right remedy than to cure him. Bleeding, mercury, opium, the very remedies j^ou used in acute rheumatism, are (I say) still your main reliance, when inflammation attacks the heart; but bleeding in different modes and measures, mercury directed to a totally different purpose, and opium given with more than one single intention. As soon as inflammation is known or suspected to have reached the heart, mercurj^ must bo given without delay. Or should mercury be already in use, as a remedy for acute rheu- matism, with the intent of obtainino; larg'e evacuations from the bowels, it must at once have a new direction given to it. The irritation it has produced within the abdomen must by all means be pacified, and its constitutional impression must now alone be thought of, — that impression, of which salivation is the best evidence, of which (as far as we know) it alone, of all remedial substances, is projjerly and exclusively capable, and which, under favourable circumstances, is largely counteractive of inflammation. But, inasmuch as that impression of mercury, or salivation, which is the best evidence of it, cannot be commanded within any given time, you must be content to administer it in the manner calculated for this purpose, and wait the event. For no judgment can be formed of its curative eflect upon the disease until salivation arrives. And it may arrive in a day or two, or not until after several days, or after a week, or after several weeks, or it may not arrive at all. You must give mercury, then, and wait until salivation come to tell you what it has done for the disease, or until it is 150 CLINICAL MEDICINE. [lECT. XII. fair to conclude there will be no salivation. And it does, I confess, require strong confidence in this great remedy, thus to give it, and thus to wait for its ultimate effect, when in the mean time it displays no proximate or intermediate effect as an earnest of its curative operation. But as in actual practice, so in description, we must now leave this remedy for a while, sujjposing it to be duly given and duly in operation towards its ultimate effect, and return to it again, when we have considered the uses of the other remedies. Now the other remedies, while they have their ultimate effect, which is to be seen and judged of in the end, have their immediate effects, which are to be seen and judged of from day to day, and from hour to hour. Their ultimate effect is to cure the inflammation. Their immediate effects are to abate pain and anguish, and dyspnoea, and palpitation ; to quiet the nervous system, to produce sleep, to moderate fever. "With respect to vensesection, if in acute rheumatism any of those symptoms referable to the heart are present, which have been already mentioned, auscultatory or non-auscultatory, and especially if they have arisen under your own observation, or, though not under your own observation, if they be now present, and you have reason to believe that they have recently arisen, then, should the pulse be found to have even a notable degree of that hardness which is deemed inflammatory, blood must be taken from the arm. Should there be any doubt about venae- section, any misgiving whether the inflammatory hardness of the pulse is quite enough to require it, let it be employed never- theless. There is greater hazard in omitting it wrongfully than in practising it wrongfully. But with the same amount of vascular action evidenced by the state of the pulse, in a case of mere rheumatism, in which the heart was not affected, vensesection would be neither neces- sary nor proper. Again, if in acute rheumatism, with symptoms referable to the heart and those recently declared, fever and vascular action run very high, and there be extreme fulness and hardness of the pulse, a copious venacsection should be practised. And the same should be repeated, were the hardness and fulness of the pulse found not to yield. And repeated again and again, until the hardness and fulness of the pulse were much abated. LECT. XII.] TREATMENT OF THE CARDIAC AFFECTIONS. 151 AVith all this fever and inflammatory action, and all this hardness and fulness of the pulse, had the case been one of mere rheumatism, and the heart unaffected, venacsection would have been properly employed, indeed once or even twice, but it would not have been carried further for reasons formerly assigned. Now, however, more danger is to be feared from the progress of inflammation in the heart, than from any shock imparted to the nervous system by loss of blood. But though the disease be inflammation, and the organ inflamed be a vital organ, even the heart, bleeding must have a limit ; for bleeding cannot alone be trusted to cure the disease. Mercury must become its auxiliary. And if for no other reason than to obtain from mercury a fuller curative operation, bleeding- must have a limit. Looking, as I do, mainly to mercury to save life, or to save the organ, I am constantly ca^-eful in the management of every case to do every thing to aid, and nothing to hinder, its curative operation. Especially in the use of venoesection, I bear this in mind ; for sure I am that loss of blood can both aid and hinder it according to its amount. In men of florid aspect and full blood-vessels, though bleeding has not been needed for its own sake, yet has it oftentimes been moderately used for expediting the sensible eflects of mercury. And the sensible effects thus induced have been at the same time curative. But, if the body be first made exsanguine by the lancet, you may gain the sensible effects of mercury, and lose the curative ; for the two do not of necessity go together. As mercury can be less trusted for its antiphlogistic power in those who either naturally or from previous disorder are pale and anaemic, so in the robust and sanguineous if you would have mercury exercise what power it has for the control of inflam- mation, you must beware of malcing these what the others are. You must hold your hand from excessive venacsection. In in- flammation of the heart you must not first change a fine ruddy countenance into the aspect of a chlorotic girl, and then leave mercury to complete the cure without anxiety or distrust of the event. EecoUect, then, that in rheumatic inflammation of the heart, 'whether it be endocarditis or pericarditis, bloodletting by venae- section is to be little in one case, and much in another, according 152 CLINICAL MEDICINE. [lECT. XII. to tlie present force of vascular action throughout the body ; little or much respective to its own proper benefit as a reined}' ; and little or much respective to its secondary uses in procuring- the more effective operation of mercury. And, recollect, more- over, the cautionary admonition applicable alike to the manage- ment of this and of all diseases in which a large share of the cure is confided to mercury; recollect, not to lessen or to lose its curative operation, either by bleeding too little or bleeding too much ; for plethora and anaemia are alike obstructive of it. But there are other modes and means of bloodletting besides vena}section. There is cuj^ping, and there are leeches. Now in rheumatic inflaiumation of the heart, cupping or leeches, or both, may be needed as auxiliary to vena:section ;. or, exclusive of vena?section, they alone may be needed and trusted for taking as much blood as the nature of the case requires. As it often happens to other orgfjns when they are inflamed, fio also to the heart, that, when general vascular action has run high and vena^section has been employed to reduce it, and hun I'cduced it effectually, the local symptoms will remain altogether, or almost unmitigated. Thus jjain and palpitation of the heart, and unnatural sounds, often abide in the same degree, or nearly so, after vena?section as before it ; and then cupping or leeches come in as effective auxiliaries, and the local bleeding often makes at once an ap2)reciable impression upon what the general bleeding has not touched. Again, as in other parts of the body, so in the heart, it is no ^mcommon thing for inflammation to begin andpi^ocecd onwards to destructive disorganisation '^fvY/zo;;;? being felt as an inflainniatio)!. ])y the constitution at large. It imparts no special hardness to the pulse, and no extraordinary force to the circulation, yet it is working its own injurious changes locally; palpitation, or pain, or irregular action, or unnatural sounds, declare as much. Here all that bloodletting can compass for the relief of the disease and its symptoms will be attained by cupping, or by leeches alone. Now there is a choice between cupping and leeches. One may be a more appropriate remedy' than the other in a particular case ; and yet I dare hardly trust myself, apart from the patient, to jioint out what it is that should determine you to prefer one to the other. LEC'J\ XII.] TREATMENT OF THE CARDIAC AFFECTIONS. 153 So dexterous are those wlio are well practised in tlie art of cnpjiing that they can make their glasses draw a given quantity of blood in almost as short a time as the lancet ; whereas leeches are long at work in taking away the quantity you desire. There- fore, upon the principle of requiring in the remedy a force and rate of operation proportionate to the force and rate of the disease, I should say that when the pain or anguish, or by what- ever name you call the distress immediately referable to the heart, begins suddenly, is at once felt severely, and augments rapidly, then cupping is the remedy ; but that, when it comes on by little and little, and increases slowly, and has not yet reached a great amount, then leeches are the remedy. But leeches are often needed as auxiliary to cupj)ing, just as cupping is to ventcsection. There is another thing worth mentioning as to the use of these remedies. When I have employed cupping in inflamma- tion of the heart, I have been accustomed to have the glasses applied between the left scapula and the vertebral column. Applied upon the pra^cordial region, they have seemed to me to cause peculiar distress, and to be not without the hazard of doing mischief and violence to the heart in its present condition : for recollect that noic a slight percussion upon the cartilages of the ribs, or any degree of pressure which shall carr}^ them ever so little downwards towards the heart, will often occasion pain. Besides, blood taken from between the scapula and the spine produces all the relief to the heart which could be expected. But we must come nearer yet to the bedside of the patient, and look still more closely into the immediate efl'ect of blood- letting in inflammation of the heart. Its effect, day by day, is the earnest of its ultimate effect. The sensible impression of each venaesection, or of each cupping, or of each application of leeches, is a measure of the good they are doing, and of the trust to be reposed in them as remedies. But what is this effect which is to be looked for day b}^ day ? In inflammation of the lungs or pleura, bloodletthig shows its favourable impression by setting free the respiration and diminishing pain. In inflammation of the brain, by abating delirium, or coma or spasm, by restoring clearness to the senses, and intelligence to the mind ; in inflammation of the perito- 154 CLINICAL MEDICINE. [lECT. XU. neum, by softening the tense abdomen, and making it more patient of pressure. And if the heart be inflamed either within or without, any of the several modes of bloodletting will denote itself to be exercising a curative power on the disease, when it moderates pain, or when it moderates excessive impulse, or when it renders its beats regular again, which were irregular before. Thus it is in the sensations and functions of the heart as of other organs, that we see the benefit which bloodletting is doing, or is ultimately to do, towards the cure of its inflammation. Next as to the use of opium. It indeed is needed now that the heart is inflamed, to calm the nervous system, and to abate pain, as it was needed before ; and, moreover, it is needed for another purpose, viz. to give efiect to the operation of mercury in one mode at least of administering it. If in aiming to produce salivation you give calomel inter- nally, you must restrain it from running ofi" by the bowels : and this can only be done by opium. Opium must be combined with every dose of calomel, and the quantity of each must be proportioned to the other. Thus, perhaps, we shall generally find ourselves compelled to give more opium for the purpose of keeping the bowels patient under the stimulus of calomel, than we should give merely to soothe the nervous system under the general irritation of the disease. But, as the remedial opera- tion of mercury is not now under consideration, it is imneces- sary to say more at present of opium as its adjunct and auxiliary. Beside, however, these its common uses of calming the nervous system and abating pain and aiding the effect of mercury, opium has its extraordinary uses for extraordinary emergencies. In endocarditis and pericarditis, not always, but most commonly, pain is present ; pain of the heart varjung in amount, and upon the whole abiding, yet allowing remissions and abatements. But whether this customary pain be present or no, a sudden agony will sometimes seize the heart, and at once the patient will feel and look as if he had received his death-blow. It is like a spasm of the heart. It is no other than a paroxysm of angina pectoris. This terrible seizure attends pericarditis more frequently than endocarditis, and where it has once occurred, it is apt to occur again. Its only remedy, as far as I know, is a large dose of opium. Opium is LECT. XII.] TREATMENT OF THE CARDIAC AFFECTIONS. 155 the only means of rescue during the agony, and the only safe- "juard ao:ainst its return. Thus it is with opium as it is with bleeding. Day by day it makes its sensible impression both upon the constitution at large, and upon the diseased organ. It is pre-eminently sedative and anodyne and antispasmodic. And so day by day it is curative in a certain measure, and gives assurance that it is contributing in the mean time to the ultimate cure. Well, then, while we look to feelings and functions, both constitutional and local, and gather notices from them that our remedies are working beneficially towards their end, have not the auscultatory signs some intimations of the like import to give us ? Having gained great information from them respect- ing the nature and seat of the disease within the heart, and the period of its commencement, we are disposed to look to them to tell us of its decline and reparation. And no doubt they do tell us a great deal ultimately. They give us all the knowledge that can be gained of the condition to which the heart reverts at last. But in the mean time, are not changes to be sought for in the auscultatory signs day by day as bleeding after bleeding, or remedy after remedy (be it what it may) is employed, changes which shall show the curative effect of the treatment now in progress ? Experience says that changes in the auscultatory signs do not occur after this manner ; and the nature of the thing shows that they cannot. By vensesection or other modes of bleeding, by a blister or by a dose of opium, pain, anguish, or palpitation or irregular action of the heart, are subdued or pacified, or made more tolerable ; and the same symptoms returning, are again brought under by the same remedies. But in the mean time, the mur- murs, endocardial or exocardial, which have been present from the beginning, do not come and go, and rise and fall. "When pain or anguish, or palpitation, or irregular action of the heart, is the greatest, the unnatural sounds are not the loudest. When those are the least, these do not become faint or inaudible. So says experience. Now only consider how different in their very nature are those symptoms and these auscultatory signs, and wherein that difference consists, and you will presently see how it comes to 156 CLINICAL MEDICINE. [lECT. XII. ITdss that they cannot both be brought under equal degrees of abatement and control by the same remedies. Pain, anguish, pali^itation and irregular action, are things purely vital. They are the sensibilities and fvinctions of the organ exalted and hurried, and baffled by the present stimulus of inflammation. And so far as the remedy can subdue it partially or entirely, temporarily or permanently, they are made to subside or to cease for a while, or altogether. But the endocardial and the exocardial murmurs are annexed to purely mechanical conditions, and proceed from new substances formed within and without the heart. And as long as these substances I'emain, whether the heart move forcibly or feebly, rhythmically or irregularly, with pain or without pain, it cannot move with- out the accompaniment of these sounds. It is true that these substances are formed by the blood- vessels engaged in the inflammation. But the i)roducts of the inflammation remain for a time after the actuating principle and vital movements of the disease have ceased. And as long as they remain they have mechanical effects according to their kind, their seat, and their degree. As long as lymph abides upon the internal lining or external covering of the heart, though inflammation have entirel}' ceased, unnatural sounds must result. As long as the blood has a thickened valve, or an unequal surface of the endocardium to pass over, it must pass with a whiz. As long as the folds of the pericardium, being- still free to move, encounter ruggedness and inequality, the}^ must move with a grating noise. Learn, then, to read aright the meaning of these two orders of symptoms referable to the heart, — the vital and the mechan- ical. Beware, especially, when the question is concerning the effect of remedies upon the disease, of mixing or confusing the iatelligence which each has now to give. The vital symptoms, when they cease, denote that the inflammation has come to an end. The mechanical symptoms, when they yet continue, denote that the effects of the inflammation remain. The two do not speak a contradictory language, but they s^jeak of difl'erent thina'S. LECr. XIII.] MERCURY TN IJ^IM. VMMAT[0>f. V)7 LECTURE XIII. THE GENERAT> QUESTION CONSIDERED OF MEllCUllY BEING A REMEDY FOR INFLAMMATION. CONDITIONS FAVOURING ITS REAIEDIAL OPERATION. THESE FOUND IN THE NATURE OF THE INFLAMMATION, IN THE FART IT OCCUPIES, AND IN THE CONSTITUTION OF THE PATIIilNT. — ITS REMEDIAL OPEKATION EITHER ANTIPHLOGISTIC OR REPARATORV. THE FIRST CHIEFLY DISPLAYED IN THE INFLAMMATIONS OF TROPICAL CLIMATES. PARALLEL FORMS OF INFLAMMATION HARDLY KNOWN IN THIS COUNTRY. WHAT COME NEAREST TO THEM. THE EFFECT OF MERCURY IN THESE NOT ALONE, BUT CONJOINTLY WITH BLEEDING. — THE PROBABLE NATURE OF ITS ANTIPHLOGISTIC OPERATIONS INFERRED FROM ITS EFFECTS, ESPECIALLY IN TWO KINDS OF INFLAMMATION. ITS REPARATORY OPERATION SHOWN BY INSTANCES. As a further remedy in tlie treatment of endocarditis and peri- carditis, I would proceed next to speak of mercury. But I find myself unable to manage this part of the subject intelli- gibly, without first making you acquainted with my notions of the use of mercury in inflammation generally. Upon a matter like this more uniform and settled opinions than we find might have been expected among medical men. Some appear to regard mercury as absolutely remedial of inflammation, and appl}^ it somewhat indiscriminately and extravagantly, from a too credulous belief of all that has been reported in its jaraise. And some see nothing remedial in it, and forego its use altogether, because they look for a more exact measure of its benefit in each particular case than it is possible to obtain. But men of experience surely cannot difier thus widely : I mean that sort of experience which belongs to the subject. Those who are largelj'- conversant with inflammation in its graver forms, — such as it often appears in hospitals, — and are much engaged in treating it, must have made or witnessed 158 CLINICAL MEDICINE. [lECT. XIII. frequent trials of mercury for its cure. And among such, who possess the needful experience, while there would probably be found different degrees of confidence in it as a remedy, none would deny to it all curative pOwer whatever. Now I venture to offer the following considerations, hoping that they may serve to reconcile in some degree discordant opinions, and to show hoiv far and for what mercury may be trusted in the treatment of inflammation. First, then, it is quite certain that mercury is not applicable to all cases of inflammation alike. In some it is eminently remedial ; in some less obviously so ; and in some it is not remedial at all. Therefore, besides the fact of the inflamma- tion, there must be conditions annexed to it, which aid or insure its efiicacy. What are these conditions? I do not know that I can clearly point them out. But perhaps I can tell you where to look for them. You are to look for them, then, not only in the inflamma- tion itself, but also in the part on which it falls, and in the constitution of the patient. The condition which respects the inflammation itself is probably contained in its greater tendency to certain results. I*J"ow inflammation tends to the deposition of lymph, and to the effusion of serum and of blood, and to suppuration. And all these results are often foimd to occur equally and in quick succession, or almost simultaneously ; but often one or other is the predominant or almost exclusive result. Accordingly, in different cases, inflammation will bear to be called adhesive, or serous, or ha^morrhagic, or suppurative. And the more it is adhesive, or has its tendency to the deposition of lymph, the more does it admit the curative impression of mercury. That over and above this predominant tendency of the inflammation itself, there is some condition belonging to the nature of the part, which favours the remedial operation of mercury, would seem highly probable. For all experience bears testimony to its more general utility in inflammation of serous than of mucous membranes. In pleurisy, in peritonitis, we are accustomed to give merciiry without much discrimi- nation of the kind of inflammation we have to deal with, or whether its predominant tendency be to lymph, or serum, or LECT. XIII.] MERCURY IN INFLAMMATION. 159 pus, or blood; and success lias attended the practice. But in tracheal and bronchial inflammation we seldom give it, and yet the majority of cases do well without it. Still there may be a doubt, whether what we ascribe to the part may not be all included in the nature of the inflammation. For in serous structures its tendency is almost always to deposit lymph. In pleurisy and peritonitis, whatever else be found, serum, or pus, or blood, it is all involved in false membranes ; whereas in mucous structures its tendency is almost always to mucus or muco-purulent effusions. But occasionally, although very rarely, laryngeal, tracheal, and bronchial inflammation has its sole and entire result in the deposition of lymph ; and then mercury becomes the remedy upon which we mainly rely for its efiectual cure. The very exception points rather to the nature of the inflammation than to its seat. But whatever may be thought of one sort of inflammation rather than another, and of one inflamed part rather than another needing mercury and favouring its effect as a remedy, there are states of constitution which aid or hinder its curative operation in a remarkable manner. Now the constitution which bears mercury the best, and most readily accepts and appropriates all the good it is capable of doing, is that which is naturally and habitually the most healthy and the most free from all specific taint or weakness, whether hereditary or acquired. When in such a constitution inflammation is met with, it commonly arises from accident ; but having arisen, it partakes of the nature of the subject. It is simple and vigorous, and speeds on rapidly to its destined results. Inflammation in such a constitution would never be cured, if the same strength which sustains the force of the disease did not sustain the greater force (for greater it must bej of every counteracting remedy, of bloodletting and of depleting methods in all their kinds, and especially of mercury. The constitution which bears mercury the worst, and is most apt to convert the good it might do into evil, is that which is habitually unhealthy, and has acquired or inherited some specific taint or weakness, as scrofula. When inflammation is met with in such a constitution, it either proceeds from some slight provocation, or arises spontaneously out of the morbid habit of the subject; and having arisen, it still partakes of the 160 CLINICAL ]^IEDICINE. [leCT. XIII. same as it goes along. Its course is unequal and precai'ious, not steadily tending to any certain result. All remedies applied to it are of doubtful efficacy. The same weakness which is unequal to carry on the disease cannot sustain the forcfe of simple antiphlogistic remedies, and is especiallj^ abhorrent of mercur}'. But is mercury to bo altogether forbidden as a remedy for inflammation in scrofulous constitutions ? I am far from saying so. For even in them I have sometimes seen inflamed organs plainly and palpably rescued from destruction by mercurj^ pushed to salivation. But then the cases were peculiar. The inflammation had been unnaturally vigorous and rapid for the constitution in which it was found, as if it came from some violent irritation forcing for the time a feeble body into actions (as it were) beyond itself, and enabling it to bear for the time extraordinary remedies, and mercury among the rest. Thus phrenitis, peri- tonitis, or pleurisy suddenly developed and rapidly progressive, in the most scrofulous subjects, should have the chance of benefit from the mercurial treatment. These, then, are some of the conditions in the disease itself, in the part it occupies, and in the constitution of the patient, which seem to favour the success of mercury, as a remedy for inflammation. Further, some little insight has been gained from experience into the mode of its curative operation. I believe that mercury has two ways by which it contributes to the cure of inflammation. In the one it constrains the morbid energy of the blood-vessels, and counteracts the powers by which the inflammation is carried on. Thus it takes its place in the same rank with bloodletting. In the other, it aids the reparation of parts by promoting the removal of stib- stances foreign to them, whether fluid or solid, which inflam- ination has produced and left behind. Thus it displays a power different in kind from that of bloodletting, and coming into operation, and having its work to perform, after bloodletting has done all it can. Let us call the first the anttphlogldic, and the second the reparatory, operation of mercury, and consider each separately. The purely antiphlogistic power of merciiry is displayed LECT. XIII.] MERCURY IN INFLAMMATION. l()l most eminently in the inflammatory diseases of intertropical climates. Here the race is fairly run between the actions and movements raised within the body by the disease, and the counter-actions and counter-movements raised by the remedy. The work of destruction by the disease is the work of a day or two. And the work of a day or two must be the work of counter-action by the remedy. Even within this time mercury must be made to salivate, if mercury is made to cure. If the disease outrun the remedy, the patient dies ; if the remedy out- run the disease the patient is saved. And all that respects the disease, and all that respects the remedy, is so marked, so sudden, and so forcible, that physicians neither doubt nor reason about the matter. They see what happens, and resting upon the evidence of what they see, they know that the disease is cured by mercury. Yet hardly more certain is the fact of the cure by mercury, than the manner in which it exercises its curative operation. For, when mercury arrests and cures these frightful inflamma- tions of the tropics, it is plain that its power is expended upon the actions of the disease in controlling them, not upon the efiects of the disease in inducing their reparation. The efiects, if the disease go on to its effects, are such as admit of no reparation. Organs are found mashed, dissolved, and fallen in pieces, with hardly a trace of their elementary structure left, when the patient dies. Our knowledge of this purely antiphlogistic power of mer- cury is new knowledge, almost within our own times. We are indebted for it mainly to our own countrymen practising within the tropics, and a large amount of gratitude is due to them from all mankind. Now, what mercury could do in India, it was naturally supposed capable of doing in Europe ; and experiments were not long wanting to put it to the test. It was about the time I was a student, that mercury was first greatly talked of and greatly employed as a remedy for acute inflammation in this country. And it has been so talked of and so employed from that time to the present. In the meanwhile experience has been growing ; and now, perhaps, the use and amount of its antiphlogistic power are settled as far as they ever can or ever will be. 11 162 CLINICAL MEDICINE. [lECT. XIII. With us inflammation never, or very rarely, begins and runs on and terminates exactly after the pattern of Indian inflammation. It comes nearest to it, when it puts on its acutest form, and attacks vital organs. And in such inflamma- tion mercury has been administered something after the Indian mode and measure, and has obtained results which display satisfactory proof of its antiphlogistic power. So satisfactory, that, for the sake of this power which they believe it to possess, a majority of the most experienced physicians in England at this day would be found employing mercury and pushing it ta salivation in the earliest stages of acute phrenitis, pneumonia, pleurisy, and peritonitis. If I am told that phrenitis, pneumonia, pleurisy, and peri- tonitis in their acutest forms have been cured by other means, before mercury was yet known to have an antiphlogistic power, or had ever yet been given with an antiphlogistic aim ; that they have been cured by time and copious blood-letting, and so may be cured again ; I admit the fact. If I am further told, that the stoutest advocates for the use of mercury dare not leave such cases to mercury alone, but employ it concurrently with blood-letting, I admit the fact. But questions of practical medicine are not to be settled like points of casuistry. The logical inference from the result of certain cases may incline one way, and the general mass of experience may incline another. In this, that, and the other case of phrenitis or peritonitis, pneumonia or pleurisy, the patient is largely bled and rapidly salivated, and is quickly well ; and in all this perhaps you find no sure warrant for believing that mercury contributed any- thing to the cure ; or, perhaps, you infer confidently that the cure was altogether due to the blood-letting ; for in other cases bleeding alone has been employed, and recovery has followed. "Well ! as far as tlie particular cases go, I cannot venture to say that your inference is wrong. Still my practice must be governed by the sum of my experience. And the sum of my experience is this, that the acutest forms of these inflamma- tions are arrested more surely and more speedily by bleeding and mercury conjointly than by bleeding alone ; and not only more surely and speedily, but by a less loss of blood ; in short, LECT. XIII.] MERCURY IN INFLAMMATION. 163 that mercury does not supersede blood-letting, but tbat it aids its antiphlogistic power, and yet spares its amount. Now, in the popular notion, the acutest inflammation is that which displays the greatest power and force of vascular action and the greatest febrile heat, and which works its local changes upon the part affected with the greatest rapidity. Such inflam- mation we have been contemplating. But there is inflammation which works its local changes with extreme rapidity, and yet rouses the movements of the general vascular system little, or not at all ; nay ! even some- times depresses them, and raises little or no febrile heat. By what name would you characterise this inflammation ? As respects its general vascular action and its fever, acute it is not. Yet, as respects its local morbid processes, its efiusions of serum, lymph, pus, and its dangerous or destructive disorganisation, acute it is indeed. But, by whatever name you call it, by what remedies would you treat it ? If by bleeding at all, it must be by local bleeding, and sj)aringly and cautiously even by that. There is no great and palpable force of action in the disease, and therefore no great and palpable force of impression needed in the remedies. But there is a destructive disorganising pro- cess rapidly at work, which needs to be rapidly overtaken and counteracted. And this (as I well know) is often efiected by mercury. Thus phrenitis and peritonitis, pneumonia and pleurisy are seen to hurry on their destructive processes, making no show of energy and power, and bearing and requiring loss of blood sparingly or not at all ; yet curable, and often cured, by mer- cury. Now reflect for a while upon what has been said. Here are two forms of acute inflammation, both alike, yet both difierent, and mercury having a share in the cure of both, but not an equal share. Think what these inflammations are, and Iwio mercury is brought to bear upon them, and perhaps you will gain some little insight into the nature of its remedial operation. In both, the essence of the disease within the part is the same, equally rapid, equally destructive, and tending to iden- tical results ; but the accompanying conditions in the con- stitution at large are difierent : in the one great febrile heat and great excess of vascular action ; in the other little or no 164 CLINICAL MEDICINE. [lECT. XffT. febrile heat, and a defect rather than excess of vascular action. In the first, there is the disease, and much beyond it, the result of sympathy reaching to all the nerves and all the blood-vessels throughout the body. In the second, there is the disease and the disease alone, carrying on its own essential morbid processes within the part. Blood-letting is a remedy for the first, and sometimes the sole and exclusive remedy. It subdues the high vascular action and febrile heat, and, reaching the disease within the part through the constitution, it subdues it also, and so compasses the entire cure. But while blood-letting is a remedy for the first, it may not be the sole and exclusive remedy. It may subdue high vascular action and febrile heat, and not at all arrest the disease within the part, or it may restrain it a little but not subdue it, and it may need the help of mercury to complete the cure. Mark then ; it is upon the very essence of the disease, upon the essential morbid process within the part, that the remedial power of mercury is brought to bear. In the second, blood-letting is a less prominent and a less needful remedy, and mercury has a larger, and a more poten- tial and more intelligible share in the cure. For here, too, and here more unquestionably, its remedial operation is, and must be, counteractive of the disease within the part, and of it alone. For the disease within the part is the whole disease. Well, then, from the share which mercury seems to have in the cure of these two forms of acute inflammation, what is the little insight (for it becomes us to speak modestly in such a matter) to be gained into the nature of its operation as an. antiphlogistic remedy ? It is this ; that, whereas some remedies act upon the heart and pulsating arteries, and so become anti- phlogistic by subduing their impulse, or moderating its excess ; others upon the nervous system, and so become antiphlogistic by abating irritation and pain ; and others act upon glands and upon various organs which secrete, and so become antiphlogistic through derivation or sympathy, mercury acts upon the extreme blood-vessels. And these are the immediate instruments of the disease ; and so mercury becomes antij)hlogistic by a mode of impression which directly interferes with the inflammatory process itself. But mercury is reparatory as well as antiphlogistic. "When LECT. XIII.] MERCUEY IN INFLAMMATION. 165 inflammation has not been withheld from reaching some of its results, and these have done injury to the structures it has occupied, injury, however, not altogether irreparable or pre- sently destructive of life, then mercury is among the remedies which have power to call into action those wonderful capacities which nature has provided for her greatest need. It now belongs to mercury among other remedies to aid and hasten and render more effectual those operations of the part and the constitution, by which organs are entirely or partially restored to soundness, and life is saved. When phrenitis has reached hydrocephalus, or peritonitis abdominal effusion ; when pneumonia has reached hepatisation, or pleurisy hydrothorax, then mercury is among the remedies which have a power of stimulating the absorbents to remove the matter extraneous to the blood-vessels whether fluid or solid, and so of restoring the diseased structures to the con- ditions of health. Therefore in this state of things it is high time to give mercury, if it has not been given before ; or if mercury has been employed at every previous stage, there is now as much need of it as ever. Whether, pending the in- flammation, the chance of benefit, from the antiphlogistic power of mercury has been thrown away, or whether it has been made the most of, and has not succeeded, there is its reparatory power still to look to, which may make up for the fault of our practice in the one case, and the failure of our practice in the other. But as, with its antiphlogistic power, mercury has some- times a smaller and sometimes a larger share in the cure of inflammation ; so, with its reparatory power, it has sometimes many auxiliaries, and is sometimes itself almost all in all. There are cases in which, under the use of purgatives and diuretics and counter-irritants, the effused serum or lymph is daily becoming less and less ; and when salivation arrives it is difficult to determine how much mercury contributes to insure or complete the reparation which had already begun, and proceeded to a certain point. And, again, there are cases in which serum and lymph abide undiminished in cavities, on surfaces, and among interstitial textures, in spite of many remedies; yet no sooner does salivation appear than they forthwith begin to be absorbed, and continue to be absorbed rapidly until they are entirely gone. 166 CLINICAL MEDICINE. [lECT. XIII. This distinction between the antiphlogistic and reparatory powers and operations of mercury is simple, and intelligible, and (I believe) true. It has not been plainly stated, but it has been plainly acknowledged by the common practice of medical men, and confirmed by their experience. I am sure it will be usefully borne in mind. For there are no conditions more essential to the success of our practice than these ; namely, first to understand the purposes which a remedy is able to fulfil, be they few or be they many, and then to have clearly in view those for which it is needed in the particular case, and then steadily to point it and press it to its mark. But, though they may be distinct in kind, it is not always easy to determine where the antiphlogistic operation of mercury ends, and its reparatory operation begins. And truly they are often both required and both displayed in the same case. Where mercury is needed and given to abate or arrest inflammation in its earliest and most active stages, it is commonly still needed and still given in its decline. The best and most efiicient treatment of inflammation is seldom so absolutely successful, but that something is left for reparation before the organ can be said to have acquired its perfect soundness. LECT. XIV.] MERCURY IX INFLAMMATION. 167 LECTURE Xiy. SUBJECT CONTINUED. ANTIPHLOGISTIC AND REPARATORY POWER OF MERCURY OVER ACUTE INFLAMMATION FURTHER ILLUS- TRATED BY ITS EFFECTS IN IRITIS, OVER CHRONIC INFLAMMA- TION BY ITS EFFECTS IN RHEUMATIC OPHTHALMIA. — ITS EFFECTS UPON INTERNAL CHRONIC INFLAMMATION. OUR ASSURANCE OF THE SEAT IS GENERALLY GREATER THAN IT IS OF THE ESSENCE OF INTERNAL CHRONIC DISEASES. OUR CON- CLUSIONS, THEREFORE, LESS CONFIDENT RESPECTING THE EFFECTS OF MEDICINE UPON THEM. EXPERIENCE OF THE CURATIVE EFFECTS OF MERCURY IN MANY HIDDEN DISEASES, WHICH FROM CIRCUMSTANCES ARE DEEMED INFLAMMATORY. NOTICE OF A PRINCIPLE TO BE REGARDED IN THE MODE OF ADMINISTERING IT. All that has been said of the uses of mercury, both as an antiphlogistic and a reparatory remedy, will be found to have its best illustration in the inflammatory diseases of one par- ticular organ. And that organ is the eye. And if any of you have imbibed an unlucky scepticism respecting the curative powers which belong to mercury, a month's diligent attend- ance and observation at the Eye Infirmary will be sure to disabuse you of it. The eye might have been intended to furnish us a little model for studying processes of disease and processes of reparation as they go on in all parts of the body, so admirably does it answer this purpose. In the eye we may behold the miniature of all diseases ; for here nature has displayed, as in a glass, all the little intimate details of her own wonder-working powers ; her modes of dis- organising, and her modes of repairing; and the aids which she receives, and the impediments which she sustains, from the right and wrong application of medical agents. Let us take the iris, its inflammations, and their cure, and dwell upon them for a while. There are cases of iritis in which 168 CLINICAL MEDICINE. [lECT. XIV. the entire cure is achieved by blood-letting alone. The fact cannot be denied. But such cases are rare. And there are cases in which the entire cure has been compassed by mercury alone. Neither can this fact be denied. But such cases like- wise are rare. The vast majority of cases which have ter- minated in a restoration of the organ to its perfect structure and functions have been treated by both. Experience is so decisive upon this point, that it would be morally wrong to come to the treatment of any particular case with the purpose of trusting exclusively to either. Truly there is enough for both to do. And with a little attention you may see clearly what it is that each really does, and may apportion to one and the other the exact share that belongs to it in bringing about the result. Now blood-letting and mercury have not the same relative share of the cure in all cases. In one, blood-letting has a very large share, and mercury a very small one ; and in another, the two remedies have their proportionate shares inverted ; while in neither case could either of the remedies be dispensed with. In very acute iritis where, besides the iris being discoloured and covered or studded with lymph, and besides the irregular pupil and the vascular zone around the cornea, the sclerotic is streaked with blood-vessels and the conjunctiva is as though injected with vermilion, blood-letting is demanded ; even veni- section, if the pulse be hard and full, and cupping upon the temples, if it be not. And how much does the blood-letting in such a form of iritis usually effect ? It changes the general aspect of the eye. It empties the blood-vessels of the sclerotic and conjunctiva. All that was vividly red beyond the margin of the cornea becomes paler. But all within this limit remains the same; the zone round the cornea, the lymjjh upon the iris, and its discoloration, and the irregular pupil all remain the same. Blood-letting has abated or subdued the inflammation so far as it has exceeded the bounds which essentially belong to it as an iritis. But within those bounds it has not reached it remedially in the smallest degree. "Within those bounds, in spite of the blood-letting, the inflammation is still proceeding uninter- ruptedly to its results. The points of lymph go on enlarging LECT. XIV.] MERCUKY IN INFLAMMATION. 169 themselves into masses, which more and more lill the anterior chamber, and close the pujjil, and more and more involve iris, and cornea, and crystalline lens in one indiscriminate disor- ganisation. But add the xise of mercury to blood-letting in the treatment of iritis in this, its acutestform ; and, besides a visible emptying of blood-vessels in the entire organ, there will, as soon as sali- vation arises, be a visible change in the condition of parts within the proper sphere of the inflammation. Whatever stage the inflammation has reached, there it will pause. Then the cluster of blood-vessels, which tended to the margin of the cornea, will become paler and paler, and the vascular zone will be seen to fade, and the drops of lymph which studded the surface of the iris will cease to increase, and then begin to lessen, and then, gradually disappear. In the mean time, the aqueous humour becomes clearer ; the i)upil, which was rendered irregular by partial adhesions, recovers its circular form, and vision is perfectly restored. But in iritis, when the general aspect of the eye is not vividly red, and when the general vascular system is not roused into fever, and there is no hardness of the pulse, and yet, never- theless, within its own specific limits, the inflammation is carrying on its own essential processes actively, rapidly, and destructively, and the zone encircles the cornea, and the iris is covered or studded with lymph, which is daily becoming more and more, and the pupil is irregular or fixed ; then there is small need of blood-letting, and only of local blood-letting at most ; but the need of mercury is as great as ever. We cup or we apply leeches ; and the good that we thus do is seldom imme- diately apparent. It is not until the mouth becomes sore, that any visible change begins in the conditions of the disease. Here, whatever may be due to cupping or leeches, observa- tion cannot be wrong in assigning the larger and more appre- ciable share of the cure to mercury. Such is the strong testimony which practical experience can furnish to the antij)hlogistic and reparatory powers of mercury, when it is brought to bear upon acute inflammation. By acute inflammation, I mean that which carries on its disorganising processes rapidly, and which works manifest change and detri- ment within the structure of parts from day to day, whether it 170 CLINICAL MEDICINE. [lECT. XIV. be accompanied by mucli excess of action in the vascular system at large, and much febrile beat, or bj'' little or none at all. But mercury is capable of an antiphlogistic and reparatory impression upon chronic inflammation. By chronic inflamma- tion, I mean that which carries on its disorganising processes so slowly that the amount of change and injury it does to the structure of parts is not appreciable from day to day. It is also the characteristic of this inflammation to abide long in one stage before it passes on to another. JNTow this general tardiness of its progress, and this lingering in its several stages, give leisure and opportunity for learning the effects of remedies upon it. Thus, some remedies are found to act curatively in one stage rather than another, and others to act curatively alike in several. Among the last is mercury. When chronic inflammation abides long in the stage of mere vascular repletion, mercury will often arrest it there, so that it shall finally cease before it has proceeded to effuse serum or lymph. In those forms of ophthalmia called rheumatic, the special redness of the sclerotic and the vascular zone, and the general redness of the conjunctiva, after they have long existed together with their characteristic pain, and have long refused to yield to other remedies, have often gradually yielded to mercury, producing salivation. And in the same forms of inflammation, now advanced to a more onward stage, the hazy cornea, and the turbid aqueous humour, and the discoloured iris, and the irregular pupil, have been gradually cleared up, and been restored, as the mouth has been gradually made sore by mercury. But in the whole range of diseases, the cases are few in which we can gain sensible demonstration of what is going on within the part. Most frequently we are obliged to reason and to calculate and learn from the manner in which function and sensation are effected, what is the part, and what is the disease, and what is the fittest remedy. Yet, without doubt, the little that falls within the reach of the senses, is the best and readiest help to much more that lies beyond them. Thus the visible forms of chronic inflammation, and their visible cure by mercury, exemplified in the eye, suggest what many forms of unseen chronic inflammation are likely to be, and the probable success of mercury for their cure. Accordingly mercury has come to LECT. XIV.] MERCURY IN INFLAISLMATION. 171 have a frequent place among the remedies of such Inflammation when it is believed to exist. Still to draw our instances from the eye, vision is often lost, or impaired in various degrees, where we do not discern the actual disease, but believe it to be seated in the optic nerve or the retina, and where, from circumstances attending the loss or impairment of vision, we conceive the disease of the retina or optic nerve to be chronic inflammation, or some of its effects. This notion of the disease at once points out the remedy. And it is remarkable in what numerous instances of amaurosis vision has been gradually restored by mercury pushed to salivation. The success of the remedy plainly denotes the nature of the disease. In many such afiections medicine would be absolutely without resource but for mercury. But to draw our instances from other organs, there are nume- rous affections of the limbs in which sensation or voluntary motion, or both, are perverted, impaired, or lost ; and numerous mental affections, in which intellect and moral perception are dis- turbed, or injured, or annulled. The disease, without doubt, is in the spinal marrow, or in the brain. But of what kind is it ? Often the history of the patient will tell us something, his habits, his mode of living, or injuries, accidents, and by-gone complaints which have befallen him ; and often the history of his symptoms will tell us more, — how they began, and how they have pro- ceeded hitherto, and what has done good and what has done harm ; and all these together may point strongly to chronic inflammation. And happily this chronic inflammation may be still lingering in some stage short of that disorganisation which is destructive and irreparable. Upon these fair presumptions the treatment has been insti- tuted, and mercury has been employed among other remedies, and salivation has been gradually produced and long maintained ; whereupon the symptoms have gradually cleared up and finally disappeared altogether. Many of the most satisfactory examples which I have seen of the curative powers of mercury, have been furnished by these forms of disease, in which I considered that I had chronic inflammation to deal with. But let me be very careful of misleading you. Very many have been the instances in which I have seen mercury utterly 172 CLINICAL MEDICINE. [lECT. XIV. fail to exercise auy curative impression whatever, wliere the presumption of chronic inflammation has been as strong as possible, and where the fact has been put beyond a doubt by examination after death. The truth is, that chronic inflammation, in organs remote from observation, often proceeds so much by degrees and so covertly, as to give no intelligible notice of itself, until it has already reached results which are irreparable. The steps and stages of chronic inflammation are not to be distinctly traced and calculated except by the eye. Again, very many have been the instances in which the treatment by mercury and other antiphlogistic remedies has not succeeded for the cure of supposed chronic iuflammation ; because, in fact, no such inflammation has existed, but some other disease, in its own nature incurable. Now when a disease is thus taken and treated for inflamma- tion, and turns out to be no such thing, and taken and treated for curable, and turns out to be incurable, there is ignorance no doubt on our part, or there is mistake, and some may think there is blame. But it is such ignorance as must be, such mistake as cannot be helped, such blame as the best and wisest of us all have no power of escaping. From the nature of things it cannot be otherwise. There were at the same time under my care in the hospital, two men completely paraplegic. Both had lost sensation and voluntary motion of the lower extremities by slow degrees. This was all that could be said of their symptoms. In neither of them was there any fever, or vascular excitement or pain. From the account which they gave of themselves, there was reason to believe that the disease of both had originated in exposure to cold some weeks ago, and that that disease was chronic inflammation of the spinal marrow, or its coverings. Both were treated by the same remedies, by counter-irritants to the spine, and by mercury. In both, salivation was gradually induced, and was long maintained. Well, what were the results ? One patient, as soon as the mercury gave notice of its specific eflfect upon the constitution, showed an earnest of improvement. Sensation and the power of motion returned very slowly, but at last very completely, to his limbs, and after three months he walked out of the hospital LECT. XIV.] MERCURY IN INFLAMMATION. 173 well. The other never showed the least sign of improvement, and, after lingering in the hospital for many months, he died. Upon examination a small scrofulous tumour was found growing from the theca, and pressing upon the spinal marrow. JSTow I can fancy an uninformed looker-on coming to a very unjust judgment upon these results, and giving a very unjust award of praise and blame accordingly ; applauding what he miffht take for a clear insiffht into the nature of the disease in the one case, and the consequent success of its treatment, and censuring what he might take for ignorance and mistake, and consequent failure, in the other. But there is neither praise nor blame in the matter. You cannot be sure of the success of your remedy, while you are still uncertain of the nature of the disease, as you must be here. The diagnosis of disease is often easy, often difficult, and often impossible. Why it is so, would be a most interesting and profitable inquiry ; but a very large one too, much too large for us at present. But I must just touch upon one part of it (the part which here concerns us), and try to show how it happens that the diagnosis of disease is often absolutely impossible. All diseases are known by their symptoms ; and all symptoms may be regarded under two general aspects, viz. those which denote the disease in its essence, and those which denote the disease in its seat. Thus, inflammation has symptoms arising out of itself as such, which denote it to be an inflammation; and it has symptoms arising out of the disturbed functions of the organ it occupies, which denote what that organ is, as the brain, the lungs, the heart, the stomach. Now, in proportion as inflammation is more acute and rajjid, both orders of symptoms are more express and prominent, and the diagnosis both of what is the disease, and of what is its seat, is equally certain. But in proportion as inflammation is more chronic and tardy, the symptoms which flow from its essence are less and less marked ; they may even become indiscernible, so that they cannot be said to exist at all. And then the dia- gnosis of what the disease is, becomes necessarily more and more obscure, and may be so obscure as to amount to no diagnosis at all. Yet in the mean time the symptoms which flow from the part are distinct enough, and become more and more distinct from week to week ; and thus, while a very obscure diagnosis 174 CLINICAL MEDICINE. [lECT. XIV. of the nature of tlie disease is all that can be obtained, or no diagnosis at all, the diagnosis of its seat is clear and undoubted from first to last. There is, then, a hard necessity in the case, and there is no help for us ; while of the organ affected we are certain, at the nature of the disease we can only guess. Yet in so guessing, surely we ought to be led by our hopes, and by the possibilities of doing good. We should always presume the disease to be curable until its own nature prove it otherwise. But when the question is of chronic disease afiecting the structure of parts, to presume that it is curable is tantamount to presuming that it is simply inflammatory ; and this at once suggests the use of mercury. !N^ow, I once heard an old experienced physician say, that most of the obscure diseases were cured by mercury. This is as much as to say that most of the obscure diseases are of the nature of chronic inflammation. It would perhaps be nearer the truth to say " many," instead of " most," and this would still leave suflacient encouragement for the employment of mercury. But one point yet remains to be well considered. I have spoken already, as we went along, of mercury so given in one case as to produce salivation rapidly or at once, and so given in another case, as to produce salivation slowly or gradually. But, if salivation do but take place, does it matter much to the cure whether it arise sooner or later ? Yes ! indeed does it. And this is the very point now to be considered. It is as important as any to be found in the whole of practical medicine. Mercury, as a remedy for inflammation, requires to be administered with as careful an adaptation of its dose to the exigencies of each particular case, as bleeding does of its mode and quantity. The principle of practice is this, to measure the force and rate of the counteractive impression to be produced, whether by blood-letting or by mercury, by the force and rate of the disease. If you have an inflammation of the greatest force and greatest rapidity to deal with, and organic changes are taking place from hour to hour, and blood-letting is to be your remedy, its mode must be by venaesection, and its quantity must be of large amount ; and it may need to be repeated again and again, and at short intervals. The blood-letting must make itself felt with a force and a rapidity which shall exceed the LECT. XIV.] MERCURY IN INFLAMMATION. 175 force and rapidity of the disease, otherwise it is no remedy at all. So, too, in the same conditions of inflammation, if mercury is to he your remedy, its dose must be large, and repeated. Calomel must be given in the dose of half a scruple at once, and again after six or eight hours. The patient's life may depend upon his being salivated within a couple of days. The mercury, like the blood-letting, must make itself felt, by its specific efiects, more forcibly and more rapidly than the disease, otherwise it will fail of its counteractive operation. But if the inflammation be of little force, and slow in its progress, and its organic changes such as are not visible from hour to hour, or even from day to day, but rather from week to week, then if your remedy be blood-letting, its mode must not be by venaesection, but by cupping or leeches, and its quantity must be small, and, if it be repeated, it must be at more distant intervals. For now it is essential to the cure that the counter- impression of the blood-letting should be kept down to the small measure of power, and the slow rate of progress, belonging to the inflammation ; otherwise it is no remedy at all. And in like manner, if mercury be your remedy, it must now be given more sparingly and less frequently. The object is to produce salivation, not as soon as possible, but slowly and with- out surprise or violence. A grain or two of calomel once or twice a day, or even some milder preparation of mercury, will bring its specific effects to bear upon the disease after many days, but still remedially. Upon the principle here laid down and illustrated by the use of bleeding, as it is the important principle which is also to guide us when we employ mercury for the cure of inflamma- tion, let me say a few words more. Partly, I think, this principle would be at once accejsted as true, and partly it would seem questionable at first sight, and would need experience to confirm it. That the blood-letting must be copious, and of the most general kind, and that the doses of mercury must be large, which are to be counteractive of severe and rapid inflammation, may be easily conceived. It looks as if it necessarily must be so. But that the blood-letting mud he scanty, and of that kind which is local, and that the doses of mercury must be small, which are to be counteractive of the inflammation that proceeds slowly, and is of small power, 176 • CLINICAL MEDICINE. [lECT. XIV. would liardly be expected. One sliGuld rather be disposed to argue a fortiori, that copious blood-letting by venocsection and large doses of mercury, being able to cure inflammation of great force and rapidity, could not fail to obtain an easy mastery over that which is of little force, and proceeds tardily : that small bleedings and small doses might now be enough, and yet that large ones would do the business more summarily and at once. But experience comes in to rectify such calculations, teaching us this general fact, that small bleedings and small doses of mercury are undeniably curative in forms of inflammation, where large bleedings and large doses exercise no remedial power whatever. A large venaesection will (as it were) leap over the disease without touching it, and afterwards a few leeches will bring it safely and gradually to an end. A rapid salivation will pass by the disease, and leave it unaltered. But when this salivation has been allowed to wear itself out, and the constitution been left to forget (as it were) the impression, and to recover from it, then the remedy being resumed on other terms, and admin- istered in very small and very cautious doses, has wrought, in process of time, an easy and efiectual cure.* * I think it well here to subjoin in a note certain remarks upon condi- tions favourable or essential to the remedial effects of mercury, which I made many years ago, when an opportunity had been recently afforded me of watching its operation upon a pretty extensive scale : — "As in regard to the various bowel complaints, so in regard to the various nervous disorders, the condition most essential to the success of the remedy was unquestionably this, that the force and rate of its impression sliould be in proportion to the force and rate of the disease. And the chief object of our care was to preserve that proportion. " Thus, where the disease was less severe, and was slow in its progress, salivation (without reference to its degree) was to be procured gradually ; where tlie disease was more severe and rapid in its progress, salivation (without reference to its degree) was to be procured at once. Headache and vertigo, which had come on tardily, and had abided many weeks, without any perceptible excitement of the circulation, were to be made to yield under the slow and alterative influence of mercury, which the constitution could bear without injury. Headache and vertigo, which had been sudden in their accession, were accompanied with excitement of the circulation, and already seemed to threaten something beyond themselves, as convulsion, or delirium, or frenzy, were to be at once mastered by such a sudden and powerful im- pression of the remedy as the constitution would severely feel. Hence the •quantity of the remedy was continually varied, according to the exigencies of particular cases. For some we prescribed one grain or two grains of LF.CT. XIV.] MERCURY IN INFL.VAIMA TIOX. 177 calomel, with a small quantity of opium, once or twice in twenty-four hours, and thus succeeded in procuring relief after the lapse of a Avcekor ten days; doing no harm in the mean time, to the general health and sensations of the ])atient. For others, we prescribed five, or ton, or even twenty grains of calomel, with proportionate quantities of opium, once, or even twice, in Iwenty-four hours ; and tlius succeeded in dissipating the symptoms at once, and in rescuing liA; at the expense of some ])resent injury to tlie constitution." — An Account of the Disease lately prevalent at the Genend Penitentiary, p. 113, ed. 1825, 12 178 CLINICAL MEDICINE. [lECT. XV LECTUEE XY. USE 01' MERCURY IN THE TREATMENT OF RHEUMATIC ENDO- CARDITIS AND PERICARDITIS. EVERY GREAT ADVANCE OF CLINICAL AND PATHOLOGICAL KNOWLEDGE REQUIRES THAT OLD REMEDIES SHOULD UNDERGO THE TRIAL OF NEW EXPERIMENTS. IN ENDOCARDITIS THE REMEDIAL POWER OF MERCURY SHOWN, NOT SO MUCH BY THE RESULT OF SINGLE CASES, AS BY THE COMPARATIVE RESULTS OF MANY WHICH HAVE, AND OF MANY WHICH HAVE NOT, BEEN TREATED BY IT. IN PERICARDITIS ITS REMEDIAL POWER MAY BE APPRECIATED IN INDIVIDUAL CASES. THE RELATION WHICH THE CESSATION OF THE EXOCARDIAL MURMUR BEARS TO THE CESSATION OF THE DISEASE. THE POWER OF MER- CURY TO PROCURE THE CESSATION OF THE MURMUR, EARLY OR LATE, ACCORDING TO CIRCUMSTANCES. EARLY SALIVATION MOST STRIKINGLY CURATIVE. — LATE SALIVATION NOT WITH- OUT BENEFIT. COMPARISON OF SOME GENERAL RESULTS. While we Avere considering the treatment of rheumatic inflam- mations of the heart at each several step, and with the recom- mendation of each several remedy, I kept your attention alive to another remedy, which was yet to be noticed. This is mercury. Bleeding-, in its various forms, must be used, I told you, for its own direct curative power over the disease ; but so used, that it should not hinder the curative j)ower of mercury. Opium, I told you, must be employed to jDacify the nervous system ; but so employed, moreover, that it should at the same time aid the curative power of mercury. Then the curative power of mercury over inflammation in general was considered ; and now we come at last to its curative power over rheumatic inflammations of the heart, and I will endeavour to give you as fair an estimate of it as I can. Many years ago, in certain Essays which I published " On LECT. XV.] MERCURY IN CARDIAC RHEUMATISM. 179 some Diseases of the Heart,"* I ventured to insist, that mercury- pushed to salivation was indispensable to the cure of pericar- ditis. And at that time I did not insist on less than the results of my experience, carefully considered, seemed to warrant. But then my knowledge of the disease was very defective ; defective esj)ecially in respect of its diagnosis during the life of the patient ; and so was then every body's knowledge. For now I plainly perceive that the majority of the cases in Avhich I then believed myself treating an inflammation of the pericar- dium, were, in fact, cases of endocarditis. As diseases are better understood, and we possess surer signs for discerning their seat and progress, and events, the records of past experience become obsolete, and so a necessity arises for a new course of clinical observations. Even each man's own stock of observations, if in his time knowledge has made a great stej) in advance, observations which he has carefully kept in mind, and which have served him to draw conclusions from, he may, after all, have good reason to distrust. What an amazing difference there appears in the objects of nature around us, according to the point of view from which we regard them ! When we stand on the right spot for taking in the whole prospect, we then see what before we could not see at all, or we then see clearly what before we only caught a glimpse of, from some less commanding position. Thus, the point of view from which diseases of the heart are now regarded, discloses so many new things, and puts so many old things in a much clearer light, that I distrust the results of my former experience, and feel the need of submitting all my practice, and the use of all my remedies, to the test of my own more recent observations. I feel that the use of mercury, especially, requires to be brought to this test. Formerly I gave mercury, or designed to give it, in every case of pericarditis, and sought to procure salivation, which I deemed indispensable to the cure. And thus thinking to give it in every case of pericarditis, I probably gave it also in every case of endocarditis, not being then able to distinguish one from the other. But now, when I look back, I plainly perceive (whatever I might then have thought), that the impossibility * Med. Gazette, vol. iii. ISO CLINICAL MEDICINE. [lECT. XV. of then forming a diagnosis between the two stood in the way of my gaining a sure proof of the benefit of mercury in either. The diagnosis, however, between the two, being now plain and obvious, I will seek the evidence of the use of mer- cury in the treatment of each separately. And first, of endocarditis. In my clinical records, I find some cases of endocarditis in which bleeding and common antiphlogistic remedies alone were employed, and not a grain of mercury was given ; and yet all the symptoms refei-able to the heart, the pain, the palpitation, the dyspnoea, and the endocardial murmur itself, entirely ceased. In short, there was all the evidence that could be required of a perfect cure. But I find no cases in which mer- cury alone was given, and not a drop of blood was taken, and uo other antiphlogistic remedy was employed, and yet perfect reparation followed. While, then, I have facts which claim an independent remedial power for blood-letting, I have none which claim the same for mercury. Again, I find some cases of endocarditis in which bleeding was used, and mercury given conjointly, and the evidence of cure was satisfactory ; but the mercury produced no salivation. Here one cannot tell what share the mercury had in procuring the result ; one cannot even be sure that it had any share at all. Again, I find some cases in which bleeding and mercury were employed conjointly, and salivation quickly followed, and every vestige of the disease was swept away at once. But here, the modes in which the remedies took efiect, and the symptoms ceased, were such, that no opinion could be formed how much of the cure was due to bleeding, and how much, if any part of it at all, was due to the mercury. Again, I find some cases in which bleeding and mercury vvcre emploj'ed conjointly, and salivation followed, but it was slow to arrive. And reparation was complete in the end, but it was after a long time. Here the manner and gradations by which the disease declined appeared to correspond with the sensible operations of the remedies, and to denote, with seeming- exactness, the curative influence belonging to each. The bleeding was ])ractised, whereupon vascular action immediately abated much of its force, and pain, and palpitation, and dyspnc8;i inimediatelv went awav, but the endocardial murmur remained. LECr. XV.] MERCURY IN CARDIAC RHEUMATISM. 181 Mercury, too, was given from the first, and day after day it was still o^iven, yet there was no salivation. At length, how- ever, salivation arose, whereupon the endocardial murmur ceased. These several orders of cases exhibit fair specimens of the sort of difficulties which are apt to obstruct us, when we seek to analyse the effects of medicines. We may be well satisfied with the general results of treatment ; but when we betake ourselves to calculate the separate value of the means by which these results are brought to pass, we may not be able punctually to determine what it is. If I were called upon to bring sure proof of the remedial power of mercury in endocarditis, the last, perhaps, are the only cases to which I should be allowed to appeal ; and these claim for it (what I have explained to be) a reparatory, not an antiphlogistic power. They do not satisfy us that it had any thing to do in counteracting the progress of the inflammation. They only show us that it came in aid of nature in restoring the endocardium to its integrity, after the inflammation had ceased. But although in endocarditis I cannot produce proof, beyond cavil and exception, of more than a reparatory power belonging to mercury, yet my impression is so strong that it does exercise, moreover, a power purely antiphlogistic and auxiliary to blood- letting, that I dare not omit to give it in every case as soon as I have ascertained the nature of the disease, and to press it to salivation. Analogy favours the belief of its being antiphlogistic as well as reparatory in inflammation of the endocardium. It is obviously so in inflammation of some other structures — of the iris, for instance. At all events, the reparatory power of mercury in endocar- ditis is tolerably certain, and the earlier we employ it, the more likely is this reparatory power to come into effectual exercise. Mercury being administered coincidently with the use of blood- letting and other remedies, though it may possibly not add any antiphlogistic power of its own to theirs, yet in the mean time it will be making its way in the constitution, and will be ready to further the work of reparation when the inflammation has passed away. 182 CLINICAL MEDICINE. [lECT. XV. Thus, when I take my own experience in detail, and examine the results of treatment case by case, I cannot pretend to have found a certain proof that mercury is an indispensable remedy to the cure of endocarditis. But taking my experience in the mass, I still fear to omit its employment in any case of endocarditis with which I have to do. No doubt, hj bleeding- and other ordinary antiphlogistic remedies, precordial pain and palpitation, and even the endo- cardial murmur, have been known entirely to disappear, when mercury has either not been used at all, or being used has not produced salivation. But against the particular result of these cases, as seeming to exclude mercury, I would set the general result of my entire experience, as seeming (to me at least) to recommend it. Since the time that auscultation has disclosed the sure diagnosis of the disease, it has not in a single instance proved fatal under my care. But M. Bouillaud, to whom the world is greatly indebted for bringing its diagnosis to perfection, records numerous instances in which endocarditis terminated fatally ujider his management. Now M. Bouillaud's treatment of endocarditis has always been vigorously antiphlogistic. He has employed large and rejDeated bleedings, and all other remedies calculated to control inflammation, except mercury. Mercury he never used. My treatment of endocarditis, on the other hand, has not been vigorously antiphlogistic. I have seldom employed vense- section at all, and never largely. But mercury has been among my remedies in almost every case. From this comparison the conclusion is irresistible, that mercury has the power of doing something more in counter- action of inflammation of the endocardium than venisection and other antiphlogistic remedies, and that upon this something being done the life of the patient often depends. What this something is we can only conjecture from analogy, but yet with great probability of truth. Undoubtedly it consists either in controlling the disease, or in restoring the conditions of health, or in both. For these are the only ways, as far as I know, in which mercury exercises its curative influence. Experience thus testifies to the broad fact of mercury being LEC'i'. XV.] MERCURY IN CARDIAC RHEUMATISM. 183 instrumental to the mrhxj of life in cndocarditi.s. And un- questionably so it may bo, and yet not carry its curative powers to perfection in every case. From the records already given, it will bo seen liow many subjects of endocarditis are brought through a formidable disease by antiphlogistic and mercurial treatment, and survive and are safe ; but still they have the endocardial murmur, and never lose it. Here the mercury has indeed fallen short of restoring perfect intcgrit}^ of structure, but it has had its share in saving life nevertheless. Some unevenness, some thickening, puckering, or shortening of a valve, or a bead of lymph upon it ; this may be all that remains. But this is enough to produce an eddy of the blood, and the eddy to produce an audible murmur, and thus the heart ever afterwards passes for unsound. Yet any other internal organ which, from being inflamed, should come so near repara- tion, would pass for sound, because we should not have the means of knowing it to be otherwise. In those diseases where the remedial power of mercury is least questionable, reparation is apt to take place, leaving behind a mark or a scar. Thus, the pupil often remains slightly irregular after the cure of iritis, and clefts remain in the tonsils after the cure of an ulcer. No evil, however, results. But the merest scar within the heart is, from the nature of its functions, a grave matter in its ultimate effects. Still it is no disparagement of the remedial powers of mercury here, more than elsewhere. In conclusion, the simple fact of the much larger propor- tion of cases in which life is saved where mercury is used than where it is not, is a plain paramount recommendation of it as ii remedy for endocarditis, which all can see and understand. We come nest to the use of mercury in pericarditis. In ■every one of my eighteen cases, complicated and uncomplicated, mercury was employed. But then it was employed conjointly with other remedies; so that my experience does not furnish me with a single case from which I should be allowed to infer conclusively the curative effect of mercury without the aid of other remedies, or the curative effect of other remedies without the aid of mercury. Still I should be sorry to omit the use of either in any case of pericarditis with which I had to do. Bvit the question at present is only concerning mercury. And, 181 CLINICAL MEDICINE. j_LECT. XV. allowing bleeding and common antiphlogistic measures to be needful, and even indispensable, I am fully persuaded tbat let tbem do all which they can do, mercury can do something more; something towards saving life and inducing reparation, which nothing else can do, or nothing else can do so well. Of this there is as satisfactor}' evidence as we have of most points in practical medicine which are thought settled. Before I come to a closer examination of this evidence, I would mention one remarkable fact. Of the eighteen cases of pericarditis, which are the subject of our present commentary, and W'Cre treated by mercury, some were brought imder its sensible influence very largely, and some very slightly, but all in a certain degree except two. In these two cases, though mercury vras given in large quantity and for a long period, yet was there no sensible ptyalism, no factor of the breath, no complaint of soreness of the gums. In these two cases, while mercury was pushed thus strenuously, other remedies were vigorously employed; and, moreover, in these two cases every conceivable circumstance was present which could promise success to medical treatment. The subjects were healthy sub- jects and in the prime of life. The disease (there was reason to believe) was detected as soon as it arose. Not a moment was lost in the application of remedies. They were venoosection and cupping and leeches and blisters and opium and, from first to last, mercury. But the mercury, as I said, did not produce the peculiar eifects of mercury in the slightest appreciable degree. Now of my eighteen cases of pericarditis I lost three; and these were two of them. But let us see whether we cannot get a little nearer insight into what mercury does in j^ericarditis. And let me premise that in pericarditis the sym^jtoms, both auscultatory and non- auscultatory, give a more exact intelligence of what is going- on from day to day than they do in endocarditis; and we are able to follow the steps of the disease, and to appreciate the efi'ects of remedies, moi^e surely and satisfactorily. And, as of other remedies, so of mercury. Now my strong inijjression is, that jDericarditis, of that extent and degree which it generally reaches in acute rheu- matism, though it be treated by the best remedies and in the LECT. XV.j MERCURY IN CARDIAC IIIIEUMATISM. 185 most opporfiuio and cfiiciont manner, is never so completely cured that the parts regain their perfect integrity of structure; in short, that in the most favourable event the pericardium almost always adheres. Medical treatment saves life, but it rarely prevents the adhesion. 13 ut then, has the medical treatment of pericarditis no further aim than barely to save life ? Has it only to provide that the exocardial murmur should cease, and the patient con- tinue to live on any terms ? Yes ! it seeks much more than this. It has, indeed, first to save life; and it has further to provide that the life which it saves shall go on with the least possible hindrance, and suffer the least possible abridgment of its natural duration. And this it does when it arrests the progress of the disease, and, moreover, provides that the repara- tion (which I fear is rarel}^ perfect) should take place with the least possible degree of imperfection; that is, that the folds of the pericardium should be brought together again, and should permanently adhere with the least possible quantity of inter- vening lymph. When this is brought to pass, remedies have done their best. But, for the sake of being able to judge how far remedies are actually doing their best in particular cases, we should bear in mind, that the final cessation of the exocardial murmur probably denotes the adhesion of the pericardium, and that the sooner this occurs the less accumulation of the j^roducts of inflammation must have preceded it, and the more perfect, or, rather, the less imperfect, is reparation likely to be in the end. Thus it is a great thing for the exocardial murmur to begin and cease in a week. I can refer to three cases only, in which I am sure that such was the fact. And there was not one of them in which the jDatient was not first salivated. In two other cases the exocardial murmur ceased, in one on the sixth, and in the other on the eighth day, after they were brought imder my observation and treatment, and in both, the patients were first salivated; but in them I had no certain knowledge how long the murmur had been audible before admission into the hospital. In these several cases not only did the murmur cease, but the ^^ hole business of medical treatment w'as accom- plished. With the cessation of the murmur life was apparently safe, and convalescence followed rapidly. 186 CLINICAL MEDICINE. [lECT. XV. Here mercury seemed to me to display its highest anti- phlogistic power. But, if others doubt, let it be a question for future observation, whether, where the nmrmur of pericarditis rapidly ceases and the danger rapidly disappears and conva- lescence rapidly follows, salivation is or is not a preceding condition, in all, or in the vast majority of cases. There is no question of practical medicine more important to have rightly settled. But I am anxious not to be misunderstood in this matter, or thought to state either more or less than I mean. My expe- rience (as far as it goes) tells me, that whenever the exocardial murmur has ceased early, salivation has first taken place. But it does not affirm the converse, viz. that wherever salivation has taken place early, the exocardial murmur has ceased early. These are very different things. The early cure may not take place without the early salivation, but the early salivation maij take place Avithout the early cure. When, therefore, in after times, you come to treat this disease, should you sitcceed in bringing your patients speedily under the influence of mercury, and find in one case a speedy cessation of the murmur and a speedy arrest of all the more formidable symptoms, and find in another case the murmur still remain and still abide for a long time afterwards, and other formidable symptoms, mitigated indeed, but more slow to disappear, do not say that I have misrepresented the power of the remedy. All this is according to my experience; for turning to my records of cases I find six in which salivation was rapidly produced, with the following different results as to the period at which the nmrmur ceased: — Cases. Days. Days. 1st. Salivation produced in 1 Murmur ceased in 4. 2d. — -1 — 7. 3d. — :3 — 4. 4tli. — 4 — 28. nth. — 5 — 14. 6th. — 5 — 25. Of these six cases mercury was most eminently remedial in the three first, less eminently but still remedial in the three last. The cessation of the exocardial murmur at such widely different periods after salivation appeared, is satisfactorily accounted for by the circumstances of the different cases. LECT. XV.] ]MERC1I11Y IN CARDIAC RHEUMATISM. 187 In tlie Ihroo first cases mercury was given as soon as the murmur was audible, and salivation followed in one, two and in throe days; and the entire duration of the murmur was four days in the first, seven days in the second, and four days in the third case. Ilere there was reason to believe that the murmur denoted the commencement of the disease. The patients were under observation before the murmur arose. Prior to it there was no other symptom referable to the heart ; and thus the remedy had an equal start with the disease. It was ready to sway and counteract the first inflammatory move- ment, and still to keep it imder day by da}^ and ultimately to withhold it from terminating- in more than a scanty efi'usion of lymph within the pericardium. Thus, when the inflammation ceased (as it did) quickly, reparation was short and easy; there was little effused, and little to be absorbed. The folds of the pericardium soon came together again, and were soon restored to their previous state, or soon adhered. In the three last cases, too, mercury was given as soon as the murmur was audible, and salivation followed in four, in five, and in five days. But the entire duration of the murmur was twenty- eight and fourteen, and twenty-five days in each case respectively. Here there was reason to believe that the murmur did not denote the commencement of the disease. Prior to it for some days, and before the patients came under our observation, there were other symptoms referable to the heart, — severe pain and anguish and inordinate impulse. And thus the disease had the start of the remedy. The inflamma- tion was at first, and still for a while, unchecked and uncoun- teracted, and ultimately was not withheld from terminating in a large eflusion of lymph and serum within the pericardium ; and thus, when it ceased, reparation became long and difficult. There was much effused and much to be absorbed. The folds of the pericardium were slow to come together again and slow to adhere. When acute inflammation has existed only for a day or two, and has done the mischief only of a day or two, and the remedy has been brought to bear upon it rapidly, fvdly, and successfully, then the changes from bad to good may be plain, palpable, and at once. The symptoms of the disease may be swept away, and the mischief done in a day or two may be vmdone in a day or two, and all may soon be well. But 188 CLINICAL MEDICINE. [lECT. XV. when inflammation has gone on for a week or ten days, and has done the mischief of a week or ten days, then, though it may still be within the possibility of cure, it cannot be brought to yield instantaneously to the curative impression of any remedy. The changes from bad to good will not be discernible at once. What it has taken a week or ten days to do, it will take at least a week or ten days to undo. All may be well in the end, but all cannot be well speedily. I*row in these last cases, considering the long interval that elapsed between the appearance of the ptyalism and the cessa- tion of the murmur, and considering the fact that other reme- dies were employed together with mercur}^, I do not pretend to assign to mercury the exact share it had in procuring the result, and I can well pardon any man, who is not satisfied from my mere statement, that it had any share at all. But all who witnessed the cases were satisfied, from their own observa- tion, that it had a material share. We were all struck by this remarkable circumstance, that the whole terror of the disease was compressed within the few days which preceded the salivation. Precordial pain, and anguish, and fluttering, and gasping for breath, and pallor, and delirium, and nervous exhaustion, and threatened syncope, all in their extreme degrees, made death the apprehension of almost every hour, for four days and nights in one case, and for five days and nights in the two others. But though the murmur still continued in one case twenty-four days, in another nine days, and in another twenty days after the salivation, yet no sooner did it take place than the terror of the disease was gone. Henceforth the cases still needed anxious watching, and still needed careful treatment. But it was treat- ment of a difierent kind, and upon different terms. It was such as, instead of continually applying and pressing remedies to counteract progressive inflammation, kept them in reserve, and brought them to bear upon this or that distressful symptom as it happened to arise. The inflammation seemed gone, but its cfiects remained ; and both the constitution and the heart itself required some helps of medicine, that they might be enabled to sustain them until such reparation as was possible should be finally accomplished. (Such are the remedial effects of mercurv, when it enters LECT. XV.] MHRCIJIIY IX CARDIAC RtlElJMATrSM. 189 into the treatment of pericarditis, tind produces salivation rapi(U)j. But mercury may enter into tlic treatment of pericarditis, and produce salivation slouch/, even very nlowly. It so happened in five of tile cases whicli fell under my care. In one it took eight days, in two eleven, and in two, thirteen days to procure ptyalism or fiietor of the breath or soreness of the gums. Now in all these cases, bleeding and other antiphlogistic remedies and opium were meanwhile employed from day to day, and with good effect. They kept down vascular and nervous excitement, they assuaged pain, they abated palpitation ; and in the end the exocardial murmur ceased, and life was saved. These cases, perhaps, you would throw aside at once, and think it a foolish fancy to be searching into them for proof of any remedial power of mercury. Perhaps you would think that to those other means of acknowledged power and efficacy, which did manifest service from day to day, must be justly ascribed the whole credit of finally saving life and inducing reparation, and that to mercury, which produced no sensible effect imtil eight, or eleven, or thirteen days were past, cannot reasonably be due the smallest share in the result. Nevertheless, I must profess my strong persuasion that mer- cury had a share, and an important one, in the result. In all the five cases common antiphlogistic remedies were fairly and fully employed ; and, when no salivation appeared after many days and it became more and more doubtful whether it would ever take place, they were used with the more earnest purpose of making them do all they could do, as if the whole cure depended upon them, and as if there was no other remedy in reserve, no mercury, which might yet come into operation at last, and complete the work which they had left imperfect. Now what ha])pencd ? Not in a single instance of all the five was there the best and surest evidence of inflammation arrested, and reparation begun, until mercury, though late, had produced its specific effect. Not in a single instance did the exocardial murmur cease to be audible, until salivation appeared. Hecollect the common antiphlogistic remedies had already had in one case eight days, in two cases eleven days, and in two cases thirteen days allowed them, to do all that they could do alone. And it is strange, indeed, that in some one or two at 190 CLINICAL MEDICINE. TlECT. XV. least of these cases they should not haxe procured the cessation of the murmur, if they alone were capable of procuring it, before the salivation arrived. This is a fact worth noticing ; but it is merely a negative fact, and cannot be pressed to bear testimony to the comparative efficacy of this or that remedy. As to the exocardial murmur, though it ceased at last in all these cases, yet it continued in every one of them for a long time after salivation had taken place, in some for several days, and in some for more than a week. But, prior to its cessation, there were signs which gave us assurance of inflammation being brought to an end, and of life being saved ; and these were so coupled with the occurrence of salivation, that it would have been unreasonable to doubt of mercury being mainly instrumental to the result. I will relate, then, summarily, the plan of treatment, and the progress of recovery in these cases, marking the changes conse- quent upon the impression of the several remedies, and of mer- cury among the rest. At the beginning, every thing seemed favourable to the cure. The treatment commenced with the administration of mercury in the way best calculated to insure its specific effect, and pro- ceeded, without remission of its use, day by day. And from the first, also, and day by day, vena^section, or cupping, or leeches, blisters, and opium, were employed, according as indications required them. And these fulfilled their immediate j^urposes. Pain, and anguish, and dyspnoea, and palpitation, were relieved. Yet there was no salivation. But pain^ anguish, dyspnoea, pal- pitation, all, or several of them, returned ; and they were again relieved by some, or by several of the same remedies. Yet still there was no salivation. And again, in lilce manner, the same symptoms returned, and again were relieved by the same remedies. Yet even still there was no salivation. But after several times thus going and coming, the symptoms became more and more modified by weakness, and at last fearfully so. And after several times thus giving relief, the remedies gave relief less and less, and at last not at all. Thus medicine seemed at the end of its resources, and the patient sure to die. Now at the commencement of the disease, when mercury had been given for two or three days, and no salivation aj)peared, other remedies (it has been said) were pressed more earnestly LECT. XV. J MKliCT'RY TN (.\UiI)IAC RHEUM ATIS.M. 191 and vigorously, from an apprclioiision tliat our sole dopondoncc must rest upon them. Xovcrtheless, mercury continued to be <>iven all along-, and more largely as the constitution was found more reluctant to accept its influence, and more largely still as other remedies seemed losing their power. Then, in addition, to as much calomel, united with opium, as the stomach and bowels would bear, a drachm of strong mercurial ointment was rubbed in three or four times a day. But after long delay, and in our utmost need, salivation c-ame at last — and with the salivation there came a pause of the disease. The patient, whom we expected to die yesterday, was found alive to-day. Had the evil symptoms of yesterday been augmented in the least degree, he must have died. It seemed hardly possible ; but they remained just as they were, and he was alive still. The disease had almost touched upon dissolution, and there it paused. But could this mere pause, the patient being yet in such extremity, be taken for a ground of hope ? Yes ! even for a strong ground of hope, occurring, as it did, under such circum- stances, and coincident with salivation. For in these cases, after another day or another night, or sometimes within twenty- four hours, amendment began to follow this pause ; amendment, how- over, which was rather in the patient's own feelings than in our knowledge. Nevertheless, real amendment. We could not yet calculate the particulars in which he was better : yet he felt himself better. He had less nervous alarm, less starting from sleep, less fear of syncope from accidental movements of the body to this side or that. To oil)' observation there was still no change of synqjtoms immediately referable to the heart. From what we could learn by our percussing, and listening at and feeling the chest, there was the same prsecordial dulness, the same exocardial murmur, the same unequal, feeble, fluttering impulse. But there must have been some change in the actual conditions of the disease ; and that change might have amounted to an arrest of the in- flammatory movement at least, and a stop of further effusion. We could not tell what it was. The patient had the witness within his own nervous system, and in his own inward conscious- ness, that a change had taken place, and for the better. And we had witness of the same in those sure outward manifestations, 192 CLINICAL MEDICINE. [lECT. XV. by which the nervous system signified, both waking and sleeping, that it was more at ease. Thus from the time that the ptyalism appeared, althougli the exocardial murmur was still audible in one case for several days, in another for more than a week, and in another for more than a fortnight, we began to feel assurance, first that the disease had come to a pause, and then that the patient was further and further from death, and nearer and nearer to a state of safety, And it was pre-eminently the nervous system which began and continued all along to give us this assurance. But the nervous system was not only the chief witness, it had also now become (if I mistake not) the great agent of the patient's safety and recovery. And, as such, it now demanded our chief care. We had done with addressing remedies to the vascular system. Bleeding had had its effect, and mercury was now happily in the course of its operation. Our business was to soothe, and tranquillise, and comfort the nervous system. There was little more to do, but there was need of doino- it efiectually and well. I recollect, in a particular instance, that four hours' sleep, procured by the dexterous use of opium, marked the exact period of the patient's safety, and did the work of a week in furthering his convalescence. He woke with the number of his pulse, and the number of his respirations, greatly reduced, and thenceforth neither of them ever regained an excessive frequency; and though the exocardial murmur remained for more than a fortnight afterwards, reparation was manifestly going on. Such was the course of treatment and the progress of recovery in certain cases of pericarditis, where mercury was slow to pro- cure salivation, but procured it at last. I have endeavoured to make myself as intelligible as I could in noting the cii'cumstances which seemed to assign to the difierent remedies tlie shares they had in the result. And their shares, in my judgment, may be apportioned thus: — Common antiphlogistic remedies could mitigate, could retard, covdd do all but efiectually stop the in- flammation of the pericardium, and set reparation fairly at work. Mercury took up the cure where common antiphlogistic remedies had left it, and came in with its peculiar power and efiicacy to complete what they were not able to accomplish. And then inflammation ceased, and reparation began. LECT. XV.] MERCURY IN CARDIAC RHEUMATISM. 193 I confidently believe that in every one of these cases death would have taken place at an early period, and lonj^ before salivation arrived, had not common antiphlogistic remedies been opportimely and vigorously employed. And I as confidently believe that, in every one of these cases, death would have taken place at a later period, had not the remedial power of mer- cury been still in reserve, and had not salivation arrived at last. If we would fairly represent the power of any remedy, we should not merely point to its more striking effect in a few cases, but should be at the pains to exhibit truly its ordinary operation in the majority of cases which occur. On this account, I have dwelt the longer upon the operation of mercury in those cases of pericarditis in which it is slow to produce salivation ; for such, undoubtedly, are the majority. These, also, are the cases which seem to me to contain the surest proof of its remedial power. Not that then its remedial power is the greatest, but that from circumstances it can then be more clearly seen to be remedial; for they show both how far the cure can be advanced by common antiphlogistic remedies, and how much further it can be carried by the help of mercury. These, moreover, are the cases in which foreign and English practice in the management of pericarditis may be fairly brought into comparison, and in which it may be seen where and how the one so often fails, and the other is so often successful. In foreign practice no mercury is used from first to last, but all the power of common antiphlogistic remedies is brought to bear upon the disease ; and thus its symptoms are mitigated or subdued : yet they return again and again, and are again and again mitigated or subdued. And so the patients are kept alive for a week or ten days, and then they die in the great majority of cases. In English practice mercury is given from first to last. But it is for a long time as if it were not given at all, for it produces no sensible effect. Common antiphlogistic remedies, however, are able again and again to mitigate and subdue symptoms; and so at the end of a week or ten days the patients are still alive. Yet they are ready to die ; but in the great majority of cases they do not die. Salivation arrives late and seems to save them. 13 194 CLINICAL MEDICINE. [lECT. XVI. LECTURE XVI. OF ENDOCARDITIS, INDEPENDENT OF RHEUMATISM. — THE CLINICAL KNOWLEDGE OF ENDOCARDITIS ALTOGETHER A NEW KNOW- LEDGE, THE WAY IN WHICH IT WAS OBTAINED SUGGESTS THE WAY IN WHICH IT MAY POSSIBLY BE ENLARGED. — CASE OF ACUTE ENDOCARDITIS INGRAFTED UPON CHRONIC VAIA'ULAR DISEASE. — CASES OF ACUTE ENDOCARDITIS COMBINED WITH PERICARDITIS IN A PREVIOUSLY SOUND HEART. CASE OF SUSPECTED ENDOCARDITIS UNDER A MORE CHRONIC FORM. GENERAL REMARKS. A FEW years ago, acute endocarditis was a disease almost unknown ; yet, in fact, it must have been just as frequent a disease formerly as it is now. Where^ then, lay the secret of our former ignorance and of our present knowledge ? * Let us try to trace it out ; and in so doing, we shall see what time, what instruments, and what happy opportunities, are all needed to perfect the diagnosis of an internal disease. Morbid anatomy failed to find it out ; because morbid anatomy had not opportunities sufl&cient of investigating it. People rarely die of endocarditis, while the characters of an acute inflammation are yet traceable in the heart. Before they die, these are commonly obliterated, and there remain puckerings and thickenings of the membrane, which are, in truth, the marks, not of the disease, but of its imperfect reparation. Clinical observation passed it by ; because clinical observa- tion had not yet learned the use of auscultatory signs in reference to the heart. And when their use was generally understood, it was still the work of much time, and the labour of many minds, to simplify their application, and to understand how a single sign, denoting only one thing absolutely, is in- volved in several diseases, and helps us to discriminate them ; how the endocardial murmur especially, which only implies LECT.XVl] ENDOCARDITIS INDEPENDENT OF RHEUMATISM 195 mechanical injury done to the endocardium, helps us to deter- mine that this injury is in one case the effect of by-gone disease, or slow disorganisation, and in another the product of present and progressive inflammation. Now it is the force of concomi- tant circumstances which stamps their peculiar diagnostic value upon auscultatory signs. And these circumstances clinical observation had still to study, long after it knew the signs themselves, and understood their primary import. The endo- cardial murmur it had known, and its primary imj)ort it had well understood for years before it reached the sure diagnosis of endocarditis, and was made aware of how imjjortant a place it occupies among diseases. It was the study of concomitant circumstances which, in this great instance, both perfected our diagnosis, and enlarged the sphere of our pathological knowledge. Acute endocarditis may, hereafter, turn out to be of still more frequent occurrence than it is at present known to be. Future clinical experience may find it in frequent alliance with other forms of disease besides rheumatism ; and so, teaching us under what circumstances to expect it, may set us on searching for it, and thus may prevent us from overlooking it when it really exists. The facts for clinical observation to fix upon as evidence of acute endocarditis are these : First, an audible endocardial murmur recently declared ; secondly, the coincidence of its origin in point of time with such general vascular action as is deemed inflammatory. For my own part, I have, at present, no familiar knowledge of the conditions indicated, except in cases of acute rheumatism. I have seen, indeed, acute endocarditis when it has not been in alliance with rheumatism, but neither so often, nor under circimistances so marked, as to gain much instruction by seeing it. In the following case, endocarditis was concealed under a vast complication of disease. The patient was under my care and observation for a week, yet in the mean time I had not the skill to discern it. It was unfolded by dissection after her death. December 19, 1837, Harriet Platford, aged 14, came into St. Bartholomew's to die. Her lips were livid, her lower extremities (Edematous, her pulse small, frequent, feeble, and irregular. She groaned, she coughed, and she gasped for breath. Auscultation found sibilus and crepitation proceeding from every 196 CLINICAL MEDICINE. [lECT. XVL part of both lungs, but tiie wbole chest resonant to percussion. This indicated a diffused bronchitis. It found also an endocar- dial murmur accompanying the systole of the heart, which was heard chiefly at the apex. This indicated disease at the mitral orifice. The heart's impulse was greatly increased. This poor girl, young as she was, was a servant of all work in a humble family, l^o distinct history could be obtained from her of the origin and progress of her complaint. She had been long ill. It was only during the last three weeks that her legs had begun to swell, and cough and dyspnoea had become severely oppressive. She was kept alive a week. Diuretics were administered. Very small quantities of blood (two ounces) were thrice drawn by cupping from below the scapulae, and a blister was aj)plied to the sternum ; while she was upheld in the mean time by small quantities of wine. One day she gained a little relief, and lost it the next. She rallied and sank, and rallied and sank again. At length the ear caught no sound, either healthy or morbid, during respiration. All was dull to percussion. She became more and more livid, was insensible, was convulsed, and died. Dissection found all that was expected, and something more. All organs were congested with blood. The liver was large and dark. The kidneys had their pelvis and tubular structure stained of a deep red. The mucous lining of the larynx, and trachea, and bronchi, were deeply livid. The lungs were gorged. The cavity of the abdomen contained two pints, and each cavity of the pleura one pint, of yellow serum. The peri- cardium was distended with serum ; and the endocardium of both sides of the heart was of a deep red colour. The mitral orifice would scarcely admit the passage of one finger, and one process of the mitral valve and the chordae tendineae springing from it were ossified. Added to all this, the lining membrane of the left auricle, near its opening into the ventricle, was covered with little granules and beads of lymph, and the same were found upon the mitral valve. — W. 24, 68.* These last appearances contain the evidence of acute inflam- mation of the endocardium. Yet, in the present state of our knowledge, no human sagacity could have divined its existence * The state of tlie cavities and the muscular structure of the heart is unaccountably left unnoticed in the record of the dissection. LECT.XVl] ENDOCARDITIS INDEPENDENT OF RTTEUMATISM 1^7 during tlio life of the patient. It probably arose not many days before death. But its own distinctive murmur Avas merged in the murmur already existing, and derived from the ossifica- tion of the mitral valve. The case, however, was worth relating in some detail, only to show, under what pathological conditions, besides those of acute rheumatism, endocarditis may occur. It appears, then, that acute inflammation may be ingrafted upon previously existing chronic disease of the endocardium, and that it may arise during the last days of existence, when the vascular system is especially disturbed, and blood is obstructed and retarded in its passage through the lungs and through the heart. The next case is made up partly of what was communicated to me, and partly of what I myself observed. From what I understood of the nature of the first attack, and the condition in which I found the heart on auscultation a month afterwards, I have no doubt that the disease was acute inflammation of the endocardium, which had its origin in cold and fatigue, operating upon an enfeebled body. "A. C, set. 18, had the nettle-rash at Eton about three months ago. He came to London on its partial subsidence, and being very weak, was ordered a course of steel medicines, which he took for five or six weeks. But he still continued weak, and unable to ride on horseback, or take other active exercise, to which he had been accustomed. Four weeks ago he witnessed a cricket match, and stayed on the ground after sunset, and suffered a chill. I saw him on the 29th of August. Tongue furred, pulse 108, rigors, pain in the legs, stiffness down the back, and a very slight pain at the cartilages of the lower ribs on the left side. Leeches removed this pain, and he was ordered calomel and James' powder and salines. On the third day of my attendance, he was much worse. The pulse rose to 135, and the heart beat with great vehemence. He was bled by vena3section to 30 ounces, and afterwards had leeches every other day to the cardiac region. He was also cupped, and was brought under the influence of mercury, and had three or four blisters."* * Thus far the report of the case was furnished me by Mr. Woakes, of Luton, Bedfordshire. 198 CLINICAL MEDICINE. [lECT. XVI. The daily progress of his convalescence is not detailed in the report, which goes on to say, — " For the last six days the patient's condition has been stationary ; pulse 98, heart's action heard to a great extent, but hellows-miirmur much less than it was. He had never had rheumatism, or palpitation, or any disease of the heart before." It will be observed that the "bellows-murmur," the sign most expressly characteristic of the supposed disease, is not noticed until a very late period. This must have been an omission from inadvertence. For when mentioned, it is so as to imply that it had existed for some time previously. The patient was brought to town on the 27th of September, for my advice and opinion upon the state of his disease. He had a peculiar aspect of distress. His complexion was pale, with a slight flush. His breathing was hurried, and the more so upon the slightest movement. His pulse was very feeble, and very small, and frequent. He had some small purpurous spots on one leg, just above the instep. The lower half of the precordial region was dull to percussion, and the impulse of the heart was felt far beyond the apex. Being examined in the erect posture, a loud endocardial murmur was heard in. every part of the pra3Cordial region, equally at the apex and the base of the heart. At the base the murmur became double, and it was continued, with hardly any abatement of its inten- sity, along the subclavians and carotids. Being examined in the supine posture, the murmur, as such, was lost to the ear, both in the heart and in the blood-vessels, but still a sound was audible in both, which was different from the natural and healthy sound. The left side of the chest was altogether reso- nant to percussion, except, as before remarked, in a certain portion of the prsecordial region ; and a healthy respiratory murmur was given out by every part of the left lung. But the right side was dull to percussion all round, below the level of the angle of the scapula and of the mamma ; and it was doubtful whether, throughout this space, there was any audible respiratory murmur. He lay best on the right side. At the time I saw the patient, and made this examination, a month had just elapsed since the first attack. What I found gave sufiicient evidence of injury done to the mitral and aortic valves, and of fluid effused into the cavity of the right pleura. LECT.XVl] ENDOCAEDITIS INDEPENDENT OF RHEUMATISM 199 From a certain jerk accompanying the systole of the ventricles, I suspected, moreover, adhesion of the pericardium. Five months afterwards, in the following February, he was brought to town, and placed under my care. His body was extensively anasarcous, and the cavity of the abdomen and of each pleura contained some fluid. He was deeply jaundiced. His liver was felt lower than the navel, and reaching across the abdomen from the right to the left hypochondriiim. His jugular veins were full and prominent, and the whole venous system was loaded with blood. The great force and extent of the heart's impulse, and the large space of proecordial dulness, sufficiently declared the left ventricle in a state of hypertrophy ; and a loud endocardial murmur audible every where in the preecordial region, and beyond it in front of the chest, while it was carried along the aorta and the carotids, left no doubt of valvular injury both at the aortic and the mitral orifices. By medical treatment the anasarca was dissipated, and the chest and the abdomen were emptied of the fluid, which they contained, and the liver was reduced in size, so that it could no longer be felt. This was the work of three weeks ; and thus he was set free from the more formidable consequences of his disease. But the disease itself remained within its original seat, the heart. And in three weeks more he was dead. The heart by the simple vehemence of its action had (as it seemed) the power to kill him. Air passed uninterruptedly through every part of his lungs, yet the dyspnoea he sufiered was constant, and it became an agony on the least movement. His head was racked with continual pain. He was almost without sleep. He became delirious, and then maniacal, and then convulsed, and^ at last sank from exhaustion of his nervous system. The case, however, after all, must be left incomplete : per- mission was not granted to examine the body after death, and thus the best proof was wanting of what the disease of the heart really was ; yet, even with this defect, the case deserves to be recorded. For it can hardly be doubted that the disease was acute endocarditis, and it is most probable that pericarditis was conjoined with it from the first. The period of its origin was well ascertained. It sprang from one of the common causes of inflammation, and it was unconnected with rheumatism. Dr. West, from his large experience of the diseases of chil- 200 CLINICAL MEDICINE. [leCT. XVI. dren, has contributed some cases of idiopathic endocarditis. One of them is quite to our present purpose, and I shall quote it. "Daniel Bain, aged 11 years, living at No. 37, Thomas Street, Stamford Street, is one of 12 children of healthy parents. Nine children are still living, one died while teething, one of scarlatina, and one of pneumonia. There does not appear to be any phthisical taint in the family. "Daniel has had good health, with the exception of mild attacks of measles, hooping-cough, and scarlet fever ; and was as well as usual until May 8, 1843, when he complained of feeling cold, and began to cough. The chilliness was succeeded by fever, and he continued gradually getting worse till the 13th, when I visited him for the first time. He had had no other medicine than a purgative powder. " May 13. — I found him lying in bed ; face dusky, rather anxious ; eyes heavy ; respiration slightly accelerated ; frequent short cough without expectoration ; skin burning hot ; pulse frequent and hard. The child makes no complaint, except of slight uneasiness about the left breast. " There is slight tenderness on pressure over the heart, with very extended dulness. The heart's impulse is not increased. A very loud and prolonged rasping sound is heard in the place of the first sound ; it is loudest a little below the nipple, though very audible over the whole left side of the chest, and also dis- tinguishable, though less clearly, for a considerable distance to the right of the sternum. Second sound heard clearly just over the aortic valves, not distinct elsewhere, being obscured by the loudness of the bruit. " Respiration good in both lungs. "I ordered the child to be cupped to |vj. between the left scapula and the spine ; and gave gr. j. of calomel, with the same quantity of Dover's powder, every four hours. " 3Iay 14. — Sense of discomfort at the chest relieved by the cupping. He slept well during the night, and to-day looks less anxious, though his eyes are still heavy and suffused ; the skin is less hot and less dusky; pidse 114, thrilling, but not fuU; tongue moister than yesterday, red in the centre, coated with yellow fur at the edges ; has had one copious watery evacuation ; slight prominence of the cardiac region. The heart's sounds are obscurer and more distant than yesterday ; the bruit of yes- LECT.XVl] ENDOCARDITIS INDEPENDENT OF KlIEUMATLSM. 201 terday is now manifestly a friction sound, whicli is louder at the base than at the apex of the heart ; the first sound is altogether obscured by it, and the second is heard only over the aortic Talves. " The child has had four powders. To continue taking- them every six hours, 3J. of strong mercurial ointment to be rubbed into the thighs every six hours. Six leeches to be applied over the heart. " May 15. — There was considerable difficulty in stopping the bleeding from the leech-bites, which was so profuse as to make him rather faint. He slept tolerably during the night, and imtil 6 A.M., when he became light-headed, and continued so until 9 o'clock this morning, but has since lain quiet, though troubled by a dry cough. " His appearance is much as yesterday ; skin dry and hot ; pulse 120, possessing the same character as before, but with less power ; tongue coated at the edges, with a dry red streak in the centre ; bowels open twice, motions green and watery. " Auscultation yields the same results as yesterday. Same treatment continued, with the addition of a saline draught containing small doses of the liquor antimonialis every four hours. " May 16. — General condition much as yesterday, but on the whole seems slightly improved ; pulse 120, softer. " The friction sound is no longer audible, but a loud rasping sound is heard in the place of the ^first sound. The second sound can now be distinguished at the apex of the heart as well as over the aortic valves, and is quite natural. " On the 17th, the gums were slightly aifected by mercury and the bruit was thought to be softer and rather less loud. The dose of calomel was now reduced to gr. ss. every four hours, and the child was allowed a little broth. " On the 22nd his mouth was very sore, and all active treat- ment was discontinued on that day. The child gradually re- gained his strength, but the bruit accompanying the first sound continued, and was heard a month afterwards with no other change than being rather softer and more prolonged."* In how many prominent circumstances does this instance of idiopathic endocarditis run parallel to the course of endocarditis * Med. Gaz. vol. xxxii. p. 738. An important paper. 202 CLINICAL MEDICINE. [lECT. XVI. in numerous instances connected with acute rlieumatism ! Its accession is quickly followed by the accession of pericarditis, then both proceed together for a few days ; then the exocardial murmur which belongs to the latter ceases, marking the per- manent adhesion of the pericardium. But the endocardial murmur which belongs to the former remains and continues alone, and still abides, after the boy has recovered his health and strength, marking a permanent injury of the valves. While, therefore, at present our chief knowledge of endo- carditis is as an accompaniment of rheumatism, yet, whenever we catch a glimpse of it under other conditions, we recognise it as in itself pathologically the same, affecting the same course, admitting the same coitiplications, needing the same remedies, and leading to the same events. The following could surely be no other than a case of endo- carditis. What neither its history nor its symptoms could clearly show, was sufficiently denoted by the nature of the treatment which effected its cure. H. B., set. 43, presented himself to me one morning, with a countenance full and florid, and complained of a pain and sense of weight and tightness between mamma and mamma, occupying a space large enough to require the whole hand to cover it. The pain, he said, was not constant, but was more on than off. It had thus endured between two and three months, and was cer- tainly upon the increase. Lately some dyspnoea had been added to it. The dyspnosa, but not the pain, was augmented by exer- tion. His pulse was 80, and regular, without any peculiar character of hardness or fulness. Auscultation found a perfectly healthy respiration ; but a very loud systolic endocardial murmur at the apex of the heart. On this occasion, he, being very hot and perspiring, was ex- amined through his shirt and flannel waistcoat. The man was a collector of taxes. He had never known illness before. He was habitually a full liver, eating abundance of animal food, and drinking plenty of beer and porter. In this case I had no other thought than that the murmur proceeded from some tardy conversion of a portion of the mitral valve into cartilage or bone, which by its gradual increase had now reached a point at which the heart and the circulation must begin to feel it, and must ever continue to feel LECT.XVl] ENDOCARDITIS INDEPENDENT OF lillEUMATISM 203 it, painfully and injuriously. I could not, however, tell how long the murmur had existed, and so, for the sake of creating a little hope for myself in the management of the case, I was willing to believe that it might not have existed earlier than the date the patient gave of his own uneasiness, and that it might then have arisen from, and might still be due to, some active process of disease within the reach of a remedy ; and I set about its treatment accordingly. I ordered ten leeches to the prsecordial region, and some active aperient medicine ; and I enjoined a rigid abstinence from all wines and fermented drinks, and perfect rest at home. Three days afterwards, he spoke of a general sense of relief ; but said the pain was more abated than the dyspnoea. I now made a more accurate auscultation of the bare chest, and found the murmur less loud. It accompanied the systole, and the limit within which it was heard included about an inch and a half of the praecordial region, viz. the mamma, and a little space on the sternal side of it and below it. There was dulness to percussion at the apex, and for a couple of inches lower down. There was no perceptible increase of impulse. The murmur^ which was manifestly less while he remained still, be- came as loud as ever after he had walked twice across the room. I ordered ten more leeches to the proecordial region, and two grains of calomel every six hours. In three days more the murmur had certainly still decreased ; there was no salivation ; he was ordered to continue the calomel. In seven days more, he was fairly salivated, and had been so five days ; I was not certain of any murmur ; the sounds of the heart were loudly intonated, but it was doubtful whether they were really -unnatural. I wished the salivation to be still maintained by two grains of calomel taken every night. In seven days more, upon a very patient auscultation I satisfied myself that there was still just that degree of pro- longation, and that slight roughness of the first sound which one hears before the murmur is decidedly audible in acute rheumatism. Exertion brought out the real murmur, but it was very faint ; no dulness to percussion remained in the situation first indicated. KSalivation to be maintained. In seven days more, I foimd that since I last saw him he 204 CLINICAL MEDICINE. [lECT. XVI. had been following the same plan of treatment, except that he had not observed perfect rest ; he had walked about as usual in his business, but had been careful to avoid all hurry ; he spoke of a sensation about his heart ; it was not pain ; he could not tell what it was, or whether it was without or within ; it was something which did not naturally belong to him ; it was not always present, nor was it increased by exertion ; but there was something which he could only call a sensation. After very attentively examining him, and making him walk rapidly about my room, my ear coidd detect no murmur, or any other un- natural sound accompanying the movements of the heart. If I have rightly interpreted the nature of this case, here was endocarditis arising and existing as the whole and sole disease, unaccompanied by rheumatism or by any other known malady elsewhere in the body. At all events, here was a formidable group of symptoms, all referable to the heart, and all gradually disapjiearing, and the murmur among the rest under the use of remedies addressed to the purpose of arresting inflammation. This case teaches a practical lesson of some value. It is this — that we should be slow in reckoning diseases to be incurable. The murmur was not known to have its origin in inflammation of the endocardium, but was found among other symptoms referable to the heart, which had existed between two and three months. Yet both it and they were successfully treated, and ceased. This instance, therefore, gives us encouragement to hope sometimes beyond what we know, and to direct our treat- ment accordingly. Where palpitation, dyspnoea, and precordial pain, of no very remote duration, are found in alliance with the endocardial murmur, we should make the most of it, as an indication of treatment, in the hope that the whole disease may depend upon a covert and slowly progressive, but remediable endocarditis. There is no part of pathology which calls for the more earnest regard of medical men than the diseases of the endo- cardium, especially with a view of making out what they are in their first formation, and noting, with clear marks of dis- tinction, those which are simply inflammator}^, and come within the possibility and promise of cure. Of how many cases of complex disorganisation of the heart, LECT.XVl] ENDOCARDITIS INDEPENDENT OF RHEUMATISM 205 already gone far beyond the possibility of reparation, does valvular disease form a part ! In tbe vast majority of these, there is reason to believe that the valvular disease was the original and elementary change of structure to which all the rest was superadded as a natural and necessary consequence, and that there was a time when it existed singly and alone, without either the dilatation of the cavities, or the hypertrophy of the muscular substance, or whatever else may make up the complex disease which is at length found. Well, then, it is this valvular disease that we want to know more about. In many instances it can be traced back to an attack of acute rheumatism, when the endocardium was inflamed. But in many more acute rheumatism forms no part of the history. What, in such instances, is the nature of this valvular disease, or rather what icas it from the first ? It is too discouraging a view of the matter to regard all valvular dis- ease, which is not traceable to an attack of acute rheumatism, as essentially chronic and irremediable from the beginning, and so give up further inquiry in despair. Remember, it is not long since this district of pathology to which I am pointing, was utterly dark. It is but lately that clinical research has thrown light enough upon it to show that there is such a thing as inflammation of the endocardium ; acute, rapid, lymph-depositing inflammation : inflammation in its nature curable ; and, when perfectly cured, allowing the mem- brane to recover its integrity as if it had been never diseased ; and when imperfectly cured, spoiling a valve, and leaving it to become a point of departure, from which the heart may proceed to any mode or extent of disorganisation which it is cajDable of. But (I repeat) it is in alliance with rheumatism that all, or nearly all, which we thus know of endocarditis has been learnt and authenticated. A glimpse, indeed, has been caught of it apart from rheumatism, enough to show that it may exist, but not enough to familiarise us with it under other conditions ; not enough to bring those conditions distinctly into view, to enable us to say what they are, and to know from them when to expect it, and be prepared to treat it. It would be well for those who feel strongly the desirable- ness of more knowledge upon this subject, to consider how it is most likely to be obtained. Now I see little to hope from any 206 CLINICAL MEDICINE. [lECT. XVI. more curious scrutiny of auscultatory signs, or from any further poring and pondering over symptoms immediately referable to the heart itself (the heart itself already speaks plainly enough about its diseases, if that were all) ; but I look with better promise to clinical research among fevers and febrile ailments of the constitution at large. For it was by the light first let in from thence, that the discovery was made within our own time of some of the most important diseases to which particular organs are liable. These diseases had for ages remained occult ; and they were so because, during the period of their greatest activity, they are wont to put forth no symptoms calculated to arrest attention. But now that the diseases themselves are known, their symptoms are found to be sufficiently definite. They are, however, such as require to be sought after before they are found. But whence do we get our hint to search after them ? Even from the more general and more apparent con- ditions of disease with which experience has found them naturally associated. Thus having typhus fever to deal with, we seek for follicular ulceration of the intestines, and often find it. Having scarlet fever, we seek for inflammation of the kidneys, and often find it. Having acute rheumatism, we seek for endocarditis, and often find it. It was, indeed, a great thing — a thing to be valued at the worth of many lives — to find out these natural alliances of ulceration of the intestines, inflammation of the kidneys, and endocarditis, with those seve- ral more prominent and obvious conditions of disease in the constitution at large. But, doubtless, each of these several diseases of particular organs occurs unallied with any such fevers of well-known type and character. How often, I cannot tell ; probably much oftener than any one suspects. As to endocarditis, we have lit upon it a few times by accident, obscured by circumstances, but at an early and curable stage, when it would probably have been cured, had it been more clearly seen, and had it presented a steadier mark for the aim and direction of medical treatment. And, times without number, we have met with chronic valvular disorganisations which might have, and probably had, their origin in some attack of endocarditis, which was never known, and never treated. But som etimes to light upon it by accident, and oftentimes LECT.XVl] ENDOCARDITIS INDEPENDENT OF RHEUMATISM 207 to be hopelessly admonisliecl by its fatal consequences that it has existed, would seem to imply that clinical observation has yet much to search after, and (it is hoped) has yet much to find, respecting the origin and progress, and various pathological relations of endocarditis. Of what endless and still increasing necessity is this business of clinical observation to the improvement of our art ! ! All that has been found out by those who have gone before us does not leave less, but more to be sought after by ourselves. Each new fact is a mere curiosity, while its value and its uses are yet undetermined. Labour or chance may have first disclosed it, but its value and its uses can only be ascertained by long observation and experience. For, until it be seen, how other facts, already known, naturally group themselves around it, we can understand neither its place nor its bearing in the system of things to which it belongs. In this way does each newly discovered fact suggest and multiply new inquiry ; and thus there are never wanting to our profession fit objects for the best understandings to pursue. Clinical observation, with a view of keej)ing a man up to what is known, and perfecting him in its accustomed uses, may be an affair of sober industry only, of patient and almost passive looking on. But clinical observation, with a view of knowing more than is known, and turning new knowledge to its uses, belongs to an industry of another kind, to an energy ever active and stirring, and drawing upon, and working with, the highest faculties of the mind. 208 CLINICAL MEDICINE. [lECT. XVII. LECTUEE XYII. PERICARDITIS INDEPENDENT OP RHEUMATISM. — SHOWN BY MORBID ANATOMY TO BE OF COMMON OCCURRENCE. — ITS SMALLER DEGREES THE MOST FREQUENT. PROBABLY HARMLESS. GENERALLY BEYOND THE REACH OF CLINICAL DIAGNOSIS, ITS GREATER DEGREES NOT BEYOND ITS REACH, BUT APT TO ELUDE IT. ^WHY. COVERT ACUTE PERICARDITIS AND COVEBT ACUTE PLEURISY COMPARED. REVIEW OF CASES WITH THE PURPOSE OF FINDING WHAT NATURAL ALLIANCE PERICARDITIS MAY HAVE WITH OTHER GENERAL PATHOLOGICAL CONDITIONS BESIDES RHEUMATISM. There is no structure of the body more liable to inflammation than the pericardium. Of those who have reached adult age and upwards, one half (it appears) have suffered pericarditis at some period of their existence. But then, in the vast majority of cases, it is neither detected, nor perhaps detectible, during life. It comes and goes unnoticed, and neither by itself while it remains, nor by its efiects when it has ceased, does it do any amount of injury capable of interfering with the healthy actions of the heart. Hence in five cases out of six there is no clinical history to be given of pericarditis. How and when, and under what circumstances it takes place in the living man, we have not the smallest experience. All our knowledge of it is from its effects which we discover in the corpse. All those white spots upon the surface of the heart, which have engaged and perplexed the speculation of pathologists ever since they have betaken themselves to dissection, have at length been demonstrably shown by Mr. Paget to be the effects of inflammation. To show the absolute frequency of pericar- ditis, and the comparative frequency of the slighter and severer cases, Mr. Paget gives the following summary of his dissec- tions:— "Including these white spots among the efiects of pericarditis, I find that, of 110 cases which I have lately LECT.XVIl] rERICAKDITIS INDEPENDENT 01'^ JillElJ^LVTISM 200 examined iit St. Bartholomew's Tlospital, 58 have presented signs of having- sulfcred at sonic time from that disease. Among these, 40 out of 66 males, and 18 out of 44 females were thus affected; and, with respect to their ages, the morbid appear- ances were found in 5 out of 14 below twenty; in 25 out of 53 between the ages of twenty and forty; and in 28 out of 43 above forty. Of these 58 cases of pericarditis, 49 were slight cases marked by white spots and adhesions, or by ell'usions of small quantities of lymph ; and nine were severe, with complete adhesion, or with abundant recent effusion."* But in the slighter cases of pericarditis, though neither pain nor any disturbed action has ever led to a surmise of its existence, yet is it not prob'vble that the inflammation, while it was in the act of depositing the Ij^mph which formed the while spots and the small adhesions, gave occasion to the genuine to and fro sound? Indeed, it is most probable. But what, though the sound were there, if it was not heard ? And heard it could not be, if it was never listened for. And, unless attention were expressly drawn to the heart by its disturbed action, or the patient's reference of pain to it, no one would think of listening for it. Surely, then, the reasons are plain enough why the lesser and most frequent cases of pericarditis have hitherto altogether eluded observation during life. And, until they are brought within the reach of our clinical knowledge, they cannot become the objects of our medical treatment. Doubtless it w^ould be to our credit, that pericarditis in all its slighter degrees should come within our knowledge and treatment. But, because this is not the case, mankind has suffered nothing. For such pericarditis is harmless from beginning to end. It puts life to no present peril, and does no ultimate injury by its effects. These white spots and slender adhesions of the pericardium are often found where there is not a vestio-e of disease besides; and then the heart at the same time is so constantly found perfect in size, and form, and capacity, that they may be considered as things almost purely innocent. What I am now saying of the pericardium and its covert inflammation ending in white spots and small adhesions, wjiU * Med. Chir. Trans, vol. xxiii. p. 29. 14 210 CLINICAL MEDICIXE. [lECT. XVII. call to niiud what, in a former lecture, I said of the endocar- dium and its covert inflammation, which ended in puckering, tliiciccning, and shortening of the valves. But the inflammation of the tvro structures, while they are (both alike in the secrecy with which they caiiy on their elementary process, arc most unlike ever afterwards. While email patches of lymph and small adhesions of the pericardium are never felt injuriously — indeed, are not felt at all — a spoiled valve (and how little does it take to spoil it!) at once begins to baffle the functions, and ends by disorganising the entire structure of the heart. To the clinical study of the two diseases we are urged by very unequal motives, inasmuch as with respect to the one mankind suffers not at all, but with respect to the other it suffers to a great amount, from the dark- ness in which both are often involved in their beginning and progress during life. I do not see how it is possible, but that pericarditis and endocarditis in their slighter degrees must ever continue to escape our notice, until they are found to have some constant or very frequent alliance with other forms of disease bej'ond the heart, which are better knoAvn and more familiar to our experience than they are themselves. It is jJrobable that the attack of inflammation, leaving such permanent effects upon the pericardium as have been described, often takes place during some fevers. Doubtless during the progress of fevers, inflammation of small degree and small extent is apt to arise and to continue for a Avhile, and then to cease without any special remedy, or any treatment more than is included in the general management of the fever. I recollect in a case of typhus fever, about the middle of its course, a loud friction-sound being heard in the preecordial region. It con- tinued distinctly audible for three days, and then ceased altogether.— (M. xxxi. 85.) i)ut the very numerous cases in question which have but lately been shown to be of the nature of inflammation, or even to partake of the character of disease at all, these slighter cases of pericarditis, stand quite alone, and offer very little promise . of being better understood clinically than they are at present. Wo will leave them, therefore, and turn to others of greater interest. I-ECT.XVIl] PERICARDITIS INDEPENDENT OF RHEUMATISM 211 Pericarditis, it is well known, may occur in its acutest form, and yet bo unconnected with acute rheumatism. Our clinical acquaintance with it as such is indeed less perfect; and on that very account, perhaps, it is the more dangerous. For our clinical acquaintance with it will appear to be less perfect chiefly in this respect, that we have no exact knowledge of the circumstances conducing to it. And this is quite enough to make us less alert in detecting it, and less ready with our I'cmedios in treating it. Associated with this disease, there are certain recollections of things which made a great impression upon my mind when I first betook myself to the study of physic, and which I now feel it interesting and profitable to recal. It was then a sort of transition period in medicine. Men were pushing their research in a new direction, but had not yet arrived at many sure results. They were inquisitive espe- cially into what might remain of the vestiges of disease after death, as offering a promise of larger and more accurate know- ledge. In this new zeal for dissection, a vast deal of rough morbid anatomy was practised, teaching many new facts which led to some truth and to much error, the natural fruit of over-hasty conclusions. Now, it was a long time before I could appreciate in the least degree the more important uses of the facts which dissec- tion was daily disclosing to me. But there was one thing which I was not slow in finding out from morbid anatomy, viz. the great imperfection of the diagnostic part of medicine. That many forms of chronic disease should be often found after death, which had not been suspected to exist during life, was no surprise to me. This is what might have been expected. But I v/as indeed astonished that it could ever hapj^en (as happen it frequently did), that patients who had been carefully watched day by day, should, when they came to die, be found to have perished of acute destructive inflammation of some vital organ, which had never been suspected to exist while they were alive. It was the chest which was most frequently the seat of this acute, covert, and mortal disease ; and of the parts within the chest, most frequently the pleura or the pericardium. To my 212 CLINICAL MEDICINE. [lECT. XVII. amazement, the pleura or the pericardium were occasionally found covered with recent lymph, and their cavity full of turbid purulent fluid, where during life there had been neither thought nor mention nor treatment of pleurisy or pericarditis. The students were the chief morbid anatomists in those days, who yet knew nothing of the difficulties of their profes- sion, and made no allowance for them. To such young, sharp- sighted, inexperienced lookers-on, these unhappy instances would minister occasion for ridicule of their betters. They would pass harsh judgment on the physician, and express opinions not very complimentary to his sagacity. But was the fault in the physician, or in the imperfection of his art? I trust it was in the imperfection of bis art; if it were not so, I ought to have some painful reflections. For I confess (and it is my duty to confess) that the experience of after years, and the best care and watchfulness I could bestow upon individual cases, did not exempt me, in my turn, from the occasional mortification of finding upon dissection that a patient had died of an acute pleurisy, or an acute pericarditis, which I had never suspected during life; of pleurisy, however, much oftener than pericarditis. For, as an acute, disorganising, destructive inflammation, pleurisy is by far the more frequent of tlie two. Such painful oversights are now not apt to occur ; not that physicians in general, or the same individual physicians, were less sagacious formerly than they are now. There is no room for disparaging our predecessors and glorifying ourselves, or for complimenting our present selves at the expense of our former selves, in this matter. The truth is, a discovery has been made in the art of clinical observation, and we all have the benefit of it. Without the aid of auscultation, it is impossible but that the same diseases should still often go undetected. A few cases of pleurisy present themselves to me in the course of every twelvemonth, which, but for the use of my ear, I should detect either not at all, or not time enough to interfere effectually for their relief. But before auscultation was practised, pericarditis (I mean acute, disorganising, destructive pericarditis) did not go so often unnot"c3d and untreated as acute pleurisy. Yet there was the same want of exact pathognomonic signs to designate the one as LlXT.XVIl] PEIIICARDITIS INDEPENDENT OF RHEUMATISM 213 tlic other. But then, with respect to pericarditis, this most important fact had already been learnt by experience, that though its own direct signs were vague and uncertain, it was apt to be associated with other conditions of disease as plain and obvious and distinctive as possible, those, namely, which con- stitute acute rheumatism. Thus, wherever there was acute rheumatism, wo knew that pericarditis might be ; and we were sedulously on the watch for it, and ready to take the least pras- cordial flvitter or pain as an evidence of it, and a warrant for treating it. We made sure of it from a mere glimpse, and pointed our remedies at it as if it was clearly in our view. But when it occurred alone, or among other conditions of disease, with which it was not known to have any frequent or natural alliance, it ran a great chance of escaping detection and treatment ; and it often did eseaipe both, and prove rapidly fatal And even now, with all the sure signs which auscultation has unlocked and brought from their hiding-place, it still is apt to escape detection and treatment, and consequently to prove fatal. jN^early the whole sum of my experience of acute pericarditis, independent of rheumatism, is derived from cases in which it has been concealed during life, some occurring prior and some sub- sequently to the use of auscultation. In the former it could not possibly have been detected for want of auscultation ; and in the latter it lay concealed, because auscultation went for nothing when the auscultatory signs were not listened for. I will now produce some specimens of pericarditis, as I have seen it occur independent of acute rheumatism. The sort of patients in whom it is found, and its attendant circumstances, may, perhaps, give some hint of the pathological conditions conducing to it. W. B., ffitat. 26, a pale, bloodless, emaciated being, Avas carried into St. Bartholomew's Hospital, retching and vomiting, and coughing incessantly ; he had a pale, dry, rough tongue, without the least secretion upon it ; his pulse was hardly j^er- ceptible, and all things bespoke him to be at the point of death. He had been brought to his present condition by an illness of live weeks. Five weeks ago he had been attacked with j)urging of blood, and with vomiting or spitting of blood (he could not tell which), at the same time ; and these hsomorrhages continued, in some degree, for an entire fortnight. 214 CLINICAL MEDICINE. [lECT. XVII. He was by trade a journeyman tailor, a class of society Aviiich has furnislied me with inore cases of profuse haemor- rhage from the stomach and bowels than any other, and in which the habit of spirit-drinking is carried to the most horrible extent. After his admission the retching and vomiting continued, but there was no haemorrhage, and the evacuations from his bowels were natural ; he became delirious ; and in a day or two, delirium and stupor became his most prominent symptoms; and what little pulse could be perceived, was irregular. It was necessary to give him wine ; and sometimes, under its influence, the pulse would gain a little power, and recover its regularity, but it would soon lose its power, and then it Avould become irregular again. A week passed, and he continued to live on, when er^'sipelas appeared upon his face and neck, and in three days more he died. In this case there was no symptom which could possiblv suggest a suspicion of disease of the heart, except the irregular pulse. Yet it suggested (I confess) no such suspicion to me ; I saw in it only the last struggling effort of the heart to keep up life a little longer. When the pulse became stronger under the stimulus of wine, it for the time became regular also ; and when, as the stimulus ceased, it again lost its power, it again became irregular. All this looked very like failure from simple weakness. But, upon dissection, the pericardium was found to contain several ounces of serum, deej)ly tinged with red, and covered both on its loose and reflected portions with a very large accu- mulation of lymph. The lymj^h connected the two oj)posite surfaces by filamentous bands of soft texture, and was easily detached. Besides these unlooked-for appearances of the peri- cardium, the mucous membrane of the stomach was stij^pled with points of red, and was softer than natural. Throughout the whole intestinal canal, there was a redness, which seemed to be something dift'crent from simple injection of the blood- vessels, and to reside in the submucous cellular tissue. The peritoneum was pale, and contained within its cavity a consider- able quantity of clear serum. The brain and its membranes were exsanguine, while there was much serum beneath the arachnoid. The lungs Avere sound. — (M. iii. 74.) ILECr.XVIl] PERICAKDITIS INDEPENDENT OF RHEUM ATISM 215 Hero we had disclosed by dissection the sure effects of acute disorganising- inflammation of the pericardium ; and tliis it waa that killed the patient. Yet were there'no general symptoms notifjdng such inflammation any wliore, and no pain or other sign immediately referable to the heart, notifying tliat it could be there, except the almost imperceptible and irregular pulse ; and this seemed to speak of death rather than of disease. But this case fell under my observation before any thing was yet known of the auscultatory signs which mark disease of the pericardium. Yet had they then been as well nnderstood «is they are now, I was so entirely without any suspicion of the heart, that I doubt whether I should have applied my ear to it. Now I have dwelt more particularly on this case, because it is one of a class (such, at least, is my impression) to which a peculiar pathological interest belongs. And it is a good specimen of that class. It would hardly be suspected that the very act and process of dissolution could give occasion to neio disease. Eut such is the fact. And it happens especially, if the dissolution be slow and lingering ; and then this new disease is often even of an acute kind. In no part of the body is this new disease more apt thus to light up, at the very going out of life, than in serous membranes. Among phthisical patients, who have been dying by little and little for many weeks, the instances have been numerous, in which upon dissection I have found the marks of very recent peritonitis, the cavity of the abdomen containing a whey-like fluid, and the surface of the intestines covered with .flocculent lymph, and streaked with red, and adherent where their folds lie in contact. Yet in many such cases the peritonitis has given no notice of its existence during life by its proper symptoms, and after death has occasioned great surprise by its discovery. And thus, too, pericarditis will arise Avhcn the system is at its lowest state of depression. I have known some instances (and others have been rej)orted to me), where, after severe accidents and severe surgical operations, the powers ol life being brought very low, and existence with difficulty main- tained during some days, upon death eventually taking place, the pericardium has been found covered with flocculcnt lymph, .and its cavity distended with serum mixed with pus and blood. These were the products of the most acute inflammation. But 216 CLINICAL MEDICINE. [lECT. XVII. the patients were scrupulously watclied during life, yet no pymiptoms indicative of inflammation were discovered. A young man of unfavourable constitution suffered from in- flammation of tlie internal structure of both eyes. He was largely bled, and brought raj)idly under the influence of mercury. Great dyspnoea arose Avith the salivation. Both of his lungs and bis larynx became inflamed. He passed into a state of coma, and after lingering for a few days he died. Upon dissection, besides efiusion between the membranes and into the ventricles of the brain, and ulceration of the larynx, and hepatisation of the lungs, and a pint of fluid in the left pleura, there was found upon the surface of the pericardium covering the heart a large deposition of soft recent lymph, particularly about the origin of the great blood-vessels, and the muscular substance of the heart itself pervaded by a white interstitial deposit (apparently lymph) which was thickest near the pericardial surface. — (M. xx. 56.) A few instances have occurred within my knoAvledge (^f individuals having been picked up in the street, and brought into the hospital in a dying state, who, nevertheless, have sur- Adved for a few days, and afforded time to investigate the con- ditions of their disease. Nothing, however, was made out concerning them, but that they were dying ; and not the least conjecture could be formed Avhere their disease was, or what it was. Upon dissection, the pericardium was found covered with lymph, and its cavity distended by turbid scrum. I think it worth while to add the folloAving cases, as further specimens of the conditions under which pericarditis is apt ta arise, and of its complications. They are cases Avhich contain many points of great interest. W. C. was a poor boy, ten years of age, who came into the hospital to die after an illness Avhich he had already endured eight months. His Avholc body was ccdematous, and his abdomen full of fluid. He was very pale ; he was too weak to stand ; and his pulse was rapid, small, and feeble. The account given of him was this : — eight months jjreviously he was seized Avith A'omiting of green matter, and three days after Avards Avith purging of blood. This latter continued for several days, and, upon the Avhole, the quantity of blood lost was A'ery large. The hocmorrhage having ceased never returned ;, but a few days afterAvards, oedema commenced in the lower LECT. X VI r] ri:EICAEDITIS INDEPENDENT OF EHEUMATLSM 2 1 7 extremities, and in llie course of a fortnight pervaded, tlic whole body ; fluid was then accumulated in the cavity of the abdomen. All medicines failing to give relief, at the expiration of two months lie was tapped. Hereupon his kidneys began to act profusely, and in six weeks he Avas entirely free from all dropsical swelling, and he continued free until within five weeks of his admission into the hospital; then the dropsical symptoms no sooner returned, than they increased rapidly, and, in the course of a fortnight, they reached their extreme amount. The poor boy seemed dying when he was brought in, yet ho lived a fortnight. His days and nights were passed in extreme jactitation and perj)lexity, in delirium, and vomiting, and struggling for breath. His urine was loaded with albumen, and auscultation detected fluid in the chest. Three days before his death, a loud creaking crumpling sound was heard to aecompany the contractions of the heart. It was audible over a large part of the chest in front. (The heart had been care- fully examined before, and its sounds were noted to be " not unnatural.") The crumpling sound was accompanied by some increase of impulse ; but in twenty-four hours it ceased to be audible. Dissection found the internal collections of fluid, and the granulated kidneys, and the pale softened textures, which were anticipated ; and it found withal on the surfaces of the pericar- dium covering, and opposite to both the auricles, a network of lymph, in which numerous soft granules were dejDOsited. The pericardium was unusually vascular throughout, but especially at the parts from which the lymph was detached. The muscular substance of the heart, and its internal lining, and that of the aorta, were unusually red. — (M. xvii. 29.) Here to accumulated suffering and disease, which probably first sprang from inflammation of the kidneys, pericarditis was at length added, and raj^idly brought on death. In like manner, pericarditis came and closed the scene in the next case. One opportunity only was afforded for examina- tion during life, but it was enough to give suspicion that disease was at work upon the heart, wherever else it might be. W. G., aitat. 50, was admitted by mistake into the surgeon's "ward, whence he was presently transferred to me. He was nearly comatose, and naturally almost deaf. He lay on his 218 CLINICAL MEDICINE. [lECT, XVII. back witli his muscles quivering, and muttering occasionally to himself. His left eye was inflamed superficially, liis jugular veins distended, but without pulsation. His pulse was 72 with power, and ho flinched from pressure on the epigastric region. We succeeded in rousing him a little, but could not succeed in getting any rational expression from him, except to the effect that he felt no pain. We could only auscultate his chest as he lay ; that is, in front ; and found a rhonchus mixed with large crepitation proceeding generally from the lungs, and a very peculiar bruit from the heart, which accompanied the systole of the ventricles. Hereupon he was cupped upon the pnccordial region. In twenty-four hours he was dead. Here, too, upon dissection, tlic kidneys, large, hard, pale, and mottled, and entirely disorganised by granular disease, presented themselves as the source of morbid actions, which had been going on throughout tlie Avhole body for years. On the left side, the lungs floated in three pints of bloody serum, and on the right, in two, themselves being gorged with blood. In the cavity of the peritoneum, two pints of yellow scrum Avere effused without apparent disease of any abdominal viscus. The pericardium contained three ounces of serum ; and the membrane itself, both its loose and reflected portion, was covered with a fine, reticulated, adventitious membrane of coagulabic lymph, most abundant over the left cavities. It was easih^ detached, and left the surface beneath studded with red spots. The heart was rather large, but well proportioned in all its parts. — (M. xiii. 39.) Such are the specimens I have to give of pericarditis, not in alliance Avith rheumatism. In them all, you will observe it complicated with disease of other internal parts, and especially with disease, or the results of disease, of similar structures; with inflammation, or serous and sanguineous eff'usion, of the pleura or peritoneum. In short, of pericarditis not in alliance with acute rheumatism, I do not know that a single uncom- plicated case ever fell under my observation. I have, therefore, been the more curious to look into the experience of others, and 888 what they have found. Of pericarditis, not in alliance with rheumatism, Corvisart LECT.XVIl] PERICARDITIS INDEPENDENT OFKllEUMATISM 219 gives five cases ; and it was complicated with inflammation of other parts in all of tlicni except one ; and in this one it was caused by a severe blow upon the region of the heart. Two of his cases ran closely parallel with those which I have related, as in other respects so especially in this, that the pericarditis arose at last, and brought a long previous illness to a fatal tennination. A young Creole lady came from Martinique to Paris. When she was confined, and for six months afterwards, she managed herself ill in the afiair of nursing. Corvisart was called to visit her when she was actually dying, and could only learn that, for six days, she had been sufiering obscure and indefinite symptoms, and had pointed to the heart as the seat of her pain. Her pulse was irregular, and her jactitation extreme. On dissection, pleuro-pneumonia, especially of the right side, was found ; and pericarditis, which had filled the cavity with sero-purulent fluid, and spread a thick coat of lymph over the entire surface of the membrane. Here was no diagnosis of peri- carditis during life.* — (Obs. ii.) An old Creole naval officer, the victim of gout and venereal indulgences, came ii-om Martinique to Paris. Here, after being fatigued, he was attacked with low fever. In the course of the fever he became delirious, and suflered an incomplete paralysis of the left arm. Then his breathing was impeded, then his pulse was irregular, and he died. On dissection, serum was found abundantly effused between the membranes of the brain and into the right lateral ventricle, the inferior lobe of the right lung hepatised, and the right pleura covered with lymph and a sero-purulent fluid in its cavitj^, and the pericardium containing the same kind of fluid, with a plaster-like substance upon its surface. Here, too, there was no diagnosis of pericarditis during life. — (Obs. iii.) Another case was unlike these, and unlike any which I have given. A strong middle-aged man was seized, in the midst of health and without any obvious cause, with dysj)na3a, and an acute pain in the lower and left region of the chest, and on the same night with a tremendous shivering fit. On the day but one afterwards he was admitted into the hospital, already sub- * Corvisart, Essai sur Ics Mai. du Ccjcur. 220 CLINICAL MEDICINE. [lECT. XVII. clued by his disease, with his pulse small and fluttering and irregular, his features collapsed, convulsive movements of the face, hurried resjjiration, and pain in the pra^cordial region. It did not appear that any treatment had hitherto been era- ployed, and what was now practised was useless. In two days more he died. Here were found, upon dissection, the effects of pleuro- pneumonia of the left lung, which involved the diaphragm, and of extensive pericarditis. But there was evidently no dis- tinct anticipation of pericarditis from the symptoms. — (Obs. i.) In another case the disease, whatever it was, was success- fully treated ; but that it was pericarditis, one may be allowed to doubt. Pleurisy was a part of it, if not the whole. The atfecticn came on, after great exertion, suddenly, with a violent rigor, and with extremely severe pain — first in the region of the heart, and soon extending itself over the entire left side of the chest with dyspnoea, delirium, and insupportable anxiety. The patient was a female, and the catamenia occurring on the third day of the disease seemed to carry away its most alarming- symptoms, although no remedy whatever had hitherto been emploj^ed ; the catamenia stopped, and the symptoms returned with their first intensity. On the 10th day from her original seizure, she was admitted into the hospital, with symptoms which would, now, be considered to denote the left cavity of the pleura full of fluid, and its inflammation relieved, but not entirely cured, by the effusion. After remaining twenty-three days under judicious antiphlogistic treatment, she was discharged convalescent. — (Obs. v.) The single uncomplicated case remains to be noticed, where pericarditis was caused by a severe blow upon the region of the heart. It might have been a fortunate specimen for studying disease in its simplest character, had it but been seen earlier. For not only was it an inflammation of the pericardium exclu- sively, but its cause was of the simplest kind, viz. mechanical. Its proper symptoms, however, as a disease, were past before the patient reached the hospital, and what remained were its irremediable and inevitably fatal effects. But still there is a very great interest belonging to this case, and that interest is contained in the uncomplicated character of the disease, and its simple mechanical cause. LECT.XVIIJ rERICARDITIS INDEPENDENT OF RHEUMATISAI 22 1 The puticnt, it seems, was dying when ho was admitted. ITis pulse was " small, frequent, unequal, intermittent, and irregular;" his eyes were "sunk," his features "much changed." One remedy was ventured upon — a bleeding; but it was not repeated, and nothing else was tried, llencotbrth, to his death, the record of his state is very succinct, and is com- prised in " countenance more and more hippocratic ; breathing continually interrupted, and very difficult ; pulse vacillating, and scarcely perceptible; prostration of strength extreme notwithstanding the use of cordials ; a spontaneous and almost sudden dissolution of the right eye, from a suppuration which took place in it without being preceded or attended by any inflammatory symptoms ; at length, features entirely changed ; j)ulse imperceptible; debility extreme, even to fainting; death." But though dying when he was admitted, and though every recorded symptom thenceforth gave notice and threatening of death, he did not actually die until after the lapse of nineteen days ; and after death the enormous quantity of nearly four pints of sero-purulent fluid was found distending the bag of the pericardium, and its whole surface covered with a thick crust of reticulated albumen. Except that the left lung was pushed upwards, while it still was spongy and crepitous, there does not seem to have been the least change, either morbid or mechanical, found in any other internal organ of the body. What a vast amount of disease was here accumulated upon the heart ! How is it possible that the heart could bear it so long, or bear it at all ? Why, consider all was sound and perfect throughout the body, from first to last, except the heart. Its disease reached it from no previous malady of the constitution. It was received from no other organ by it, and it was imparted to no other organ from it. It began, proceeded, and ended in the heart. — (Obs. iv.) Such are Corvisart's cases, and such the sum of what it has appeared to me useful to remark upon them. xindral gives six cases of pericarditis not in alliance with rheumatism, of which three were complicated and three were not. His three complicated cases have a remarkable coincidence with some of those cases which I have given from my own experience. In one, the pericarditis was complicated with tubercles and vomica} of the lungs ; in another, with chronic 222 CLINICAL MEDICINE. [lECT. XVII. asthma and bronchial congestion ; in the third, with petechial small-jiox. In all three there was reason to believe, that it came on just prior to dissolution, and in none of them was it the object of clinical diagnosis during life. Andral, Mai. du Cceur. — (Obs. V. vi. vii.) Of his three uncomplicated cases one, which recovered, is not regarded quite with certainty by Andral himself as a case of pericarditis. It probably was so. Its symptoms set in with fever, vertigo, and apparent cerebral congestion, which were followed by severe jiain in the prajcordial region and epigas- trium, and very irregular and tumultuous action of the heart. These yielded to venisection, and several applications of numerous leeches, and the patient got well. — (Obs. iv.) Another is a case of exceeding interest. The patient, a shoemaker, thirty-one years of age, was admitted into the "Hopital de la Charitc" on the third day after his attack, and gave this account of himself :— that, three days before, he had been seized Avith rigor and a general sense of illness, and that during the following night he had much fever, and the next day he felt a very sharp pain in the left breast. The next day, the day of his admission, this pain continued. The following- was the record now taken of his symptoms : — Countenance pale and expressive of suffering and inquietude ; a sardonic smile from time to time, and a sort of convulsive trembling of the lips. Pain in the prcccordial region habitually of no great amount, but now and then becoming much more severe, and then not confined to the seat of the heart, bxit passing, like strokes of fire (such was the patient's comparison), into the whole left side of the thorax ; while at the same time the entire left arm was seized with numbness, which would be exchanged, during a few seconds, for a very sharp pain. Whenever the pain was thus exasperated, and darted in these directions, the breathing was at once greatly impeded, the beats of the heart became tumultuous, and indescribably irregular, the pulse imperceptible, and the extremities icy cold.* I)ut the pain no sooner abated again, than the breathing lost its agony, and became only moderately embarrassed, the beats of the heart were again regular and forcible, and heard over the * This sudden agony has already been noticed as incident to rheumatic pericarditis. — p. 154. LECT.XVIl] PEKICAEDITIS INDEPENDENT OF KIIEUMATISM 223 wliolo anterior part of the thorax, and the pulse was raised a little, but always remained very small relatively to the force of the heart's impulse. The chest was every where resonant to percussion, and the respii'atory murmur was everywhere strong- and clear. What a strange group of symptoms we have here ! Dis- tinct paroxysms of angina pectoris following close upon fever and pains, which had newly arisen and seemed to denote acute inflammation ! Let us see how it all will end. The disease was yet only four days old, wlien this was the condition it had brought the patient to. '^riie great force of the heart's impulse in the intervals of the i)aroxysms led to the employment of venisection and numerous leeches, and during the following night the paroxysms of pain were loss severe and less frequent. And so they were during the Ibllowing day, when they returned only three or fo\ir times; but they were still of the same character and extent, and still accompanied by the same numbness and pain of the Avhole arm down to the hand. In the evening, another venaesection was adopted. The next night was good ; and on the next day the report was given in these few Avords — " almost the same state." Nothing could well be more promising than the patient's condition on the ensuing day, which was the sixth of his disease. All pain was gone. His aspect had become more natural. The impulse of the heart was of less force and less extent. The beat of the arteries, however, was still ex- tremely small. But now came the change. A few hours after the physician's visit, without any return of pain, great dyspnoea arose, which went on increasing until the next morning ; when the pulsations of the heart, which had all along been so energetic and forcible, could scarcely be heard within the chest ; and the beat of the arteries was smaller than ever, and the entire praccordial region and a considerable space beyond it Avere dull to percussion. The horizontal posture was impossible, and as the patient sat erect, he could scarcely utter a few intel- ligible words in a gasping voice, and express that he felt as if a chain of iron was being drawn tight round his chest, and wa» suffocatino: him. lie died in the nio-ht. On dissection, the bag of the pericardium was found dis- tended with blood. It contained nearly a quart of a brownish- 224 CLINICAL MEDICINE. [lECT. XVII. red fluid, liaving the sensible qualities of blood drawn from a vein. The internal surface of the pericardium was lined with membranous concretions stained red. No other parts of the body had undergone any change, save what belonged to sangui- neous engorgements and congestions, which were evidently secondary. — (Obs. iii.) A woman, twenty-six years of age, mother of two children, and having latel}' suffered a miscarriage, was admitted into La Charite in such a state of delirium as made it impossible to gain from her any information respecting her previous condi- tion. She preserved an obstinate silence, and, being interro- gated, put on a fixed look, but answered nothing. Her face was pale, and her lips were kept apart, and agitated from time to time with a convulsive trembling. Her pulse was frequent and small, and her skin had little heat. The two next days there were observed frequent tossings of the head backwards, and sudden jerking of the trunk upwards, and twitching of the tendons. She spoke, and seemed to understand ; but her dis- course was full of incoherence. Her pulse was intermitting, as well as very frequent. On the following day, the fourth from her admission, the delirium ceased, and she only com- plained of great weakness ; but the muscles of the face were almost continually agitated with convulsive movements, and the upper extremities presented from time to time a cramp-like tetanus. On the fifth day the delirium returned ; the features motionless and changed ; the upper extremities being raised, fell by their own weight, as if paralytic ; she passed into a comatose state, and died in the evening. When the body came to be opened, neither the brain nor the spinal marrow, nor their investing membranes, nor the intestinal canal in its entire length, excej)t that here and there it presented a slight injection, nor the hmgs, except that they w'ere slightly engorged at their posterior part, nor indeed any other organ, offered a trace of disease ; but only the heart. Yet not the substance of the heart, nor any of the vessels coming to it and going from it, but the pericardium alone. The pericardium was lined with albuminous concretions, from which soft bands of adhesion proceeded from one surface to the other, while there were some oimces of greenish flocculent sermn in its cavity. — (Obs. viii.) LECT. XVII.] FliOM DETAILS nilNCIPLES. 225 J^ow I can only hope tliat this lecture of dotuils lias not drawn too much upon your patience ; for I can hardly expect that your interest has kept pace with the recital of cases which I have given from my own observation and that of others. But these cases must be allowed to contain many important facts, which, not being able to reduce them under any general head, I could not have brought forward at all, but as they were exhibited in particular instances. Be it, however, remembered, that all our knowledge was originally derived from cases. And cases must still be noted and jDreserved, and studied, as records of what we know, until we arrive at more general facts or principles than we have yet reached. For general facts or principles, well ascertained, are found both to comprehend numerous particulars, and to become at the same time their representatives, and so to dispense in some measure with the necessity of detailing them. The subjects of our profession require to be treated sum- marily or in detail, according to the degree of light that is brought to bear upon them from a general pathological principle. If you enter a spacious room with a small taper, you must carry it about, and pick your way with it into corners and recesses, and round pillars and projections, and after all you will hardly know where you are, and will be lucky if you escape accidents. But if you enter the same Avith a bright burning lamp, you have only to place it on a pedestal, and then stand in the midst and look around ; and then you will find all things, great and small, near and remote, brought out equally to view, and will at once understand and admire the beauty and proportions of the whole apartment. So it is with our clinical inquiries. We must deal much in detail, we must note cases one by one, while we yet want a great pathological principle, which can show their natural relations and reconcile them together. But once establish such a principle, and it will compass and illustrate perhaps a hundred particulars at once, and render their minuter examination needless and superfluous. 15 226 CLINICAL MEDICINE. ] LECT. XVIII. LECTURE XVIII. IMMEDIATE RESULTS OF ENDOCAE-DITIS AXD PERICARDITIS. REPARATION OF THE INJURY DONE TO THE HEART. PERFECT AND IMPERFECT. — THOUCJH IMPERFECT, IT MAY SAVE LIFE. CAUSES WHICH HINDER OR POSTPONE REPARATION : 1. THE AMOUNT OF INJURY TO THE HEART ITSELF ; 2. THE AMOUNT OF CONCOMITANT INJURY TO OTHER ORGANS; 3. ORIGINAL WEAKNESS, OR PRAVITY OF CONSTITUTION. ALLUSION TO CERTAIN AFFECTIONS OF THE BRAIN AND SPINAL MARROW INCIDENT TO THE PERIOD OF REPARATION. Our attention has thus far been occupied with acute inflamma- tion of the heart, as it is found in those structures of the organ which are its most frequent seat; and we have dwelt especialh' upon its clinical diagnosis, and its clinical history, and its medical treatment. Its clinical diagnosis is, perhaps, as nearly perfect as it is possible to conceive of any internal disease. The fact of its existence, even as soon as it begins to exist, and the discrimi- nation of its exact seat, whether in the endocardium or the pericardium, are brought to an almost certain calculation. Its clinical history is less perfect than its clinical diagnosis; but it will probably be enlarged by future research, teaching us more of the conditions, both external and internal, which con- duce to it. What, however, it has already disclosed is most valuable. It has shown that endocarditis and pericarditis are no isolated pathological facts, but that they claim a natural alliance with well-known forms of disease in other parts of the body, and in the constitution at large. Its medical treatment can hardly be thought to have reached all the certainty and success of which it is capable. But, st> far as it is successful, it claims for endocarditis and pericarditis (not less than their clinical history claims for them) a common LECT. XVIII.] RESULTS OF ENDO- AND PERICARDITIS. 227 pathology with inflammation in all other parts, showing that they botli need and bear the same remedies, and that they admit from them the same impressions, whether for palliation •or for cure. From what, then, has hitherto been seen o£ diseases of the heart, it will appear how far they stand alone, and how far they do not. They stand alone in the forms and modes of their manifestation, but in their essence they have a patho- logical unity and a common principle of treatment with the diseases of other parts; they owe their exclusive forms and modes of manifestation to the structure and functions and sensi- bilities proper to the heart, of which no other organ in the body has the like: they owe their unity of essence and their common principle of treatment to the one vascular system, the one nervous system, and the one nutrient and assimilative system, which belong to the heart as they do to all other organs, and which carry on the work of health and the work of disease there and every where. These are truths too well known to be dwelt upon. I only here set them up as cautionary notices, while we still pursue our inquiry into diseases of the heart, not to lose the links connecting them with those of every other organ of the body. Of acute endocarditis and pericarditis, under the circum- stances in which alone we have an 3^ familiar experience of their 'occurrence, viz. in connection with rheumatism, the fatal cases were few; but the cases of perfect recovery, as far as our obser- vation reached, were few also. Of ninety cases, death took place in three only. But of the rest it was only in seventeen, that we could feel any thing like an assurance of perfect recovery. What, then, became of the seventy cases which remained? The patients were kept in the hospital until they had reached, it was thought, a state of present security ; and then they were discharged, and lost sight of altogether; believed to be safe but known not to be sound. Our acquaintance with the seventy cases in question ceased at a most interesting point. The most vital organ in the body had suffered inflammation. The inflammation was goae, but the organ was still damaged. Life was safe, but recovery was imperfect. This, I say, was a most interesting point, whether 228 CLINICAL MEDICINE. [lECT. XVIII. we looked from it backward or forward. In some we had good reason for gratulatlou, in some for disappointment. Looking- backwards upon all the fears we had of the severer cases, we were content that life was merely safe when we expected death : and looking backward upon all the hopes Ave had of the milder cases, we were dissatisfied that life was merely safe when we expected complete recovery. And now in all, safe as the}'' were for the present, looking forward and thinking what was to become of them, we found them invested with a new interest prospectively; and at this point of new interest we lost sight of them. The poor patients remained under our observation and care for the longest period that the regulations of the hospital would allow, and then they returned to their customary occupations, whatever they might be, and followed them as best they could. What may be the ultimate fate of these cases will serve for our speculation hereafter. The fact of their present safety is momentous enough to have a little further consideration now bestowed upon it. This state of present safety was sometimes easily and quickly reached, and sometimes hardly and slowly; and the process of reparation conducting to it was full of eventful circumstances. But what is reparation? It is neither health nor disease; but it stands midway between them, and partakes of the nature of both. Now it is nearer to one, and now to the other; now ready to fall back into disease, and now to go forward into health. Truly this reparation demands as much of the physi- cian's care as either of the other two ; for it has its aids and its hindrances, which it is our business to study and to interpret; its aids, that we may apply them and cherish them, and in every way make the most of them; its hindrances, that we may intercept them or lessen them or counteract or annul them altogether. Unquestionably it does often happen, even when vital organs are concerned and inflammation has materially injured their structure, that, as soon as it is fairly arrested, the patient is safe for the present. There may yet remain a great deal to be done before he is either entirely well, or as well as he ever will be; but already there is no anxiety about his life. On the LECT. XVIII.] REPARATION OF INJURY. 229 other hand, it often happens, when vital organs are concerned, and a material injury is done, that though the inflammation have come to an end, life is still in jeopardy. It is not enough that the disease, as an active, moving, mischief- working process, have ceased, reparation has to take its place, and to make some real progress before the patient is safe from day to day. Inflammation of the heart in its several forms furnishes examples of both these issues, and happily of one much of tener than of the other. Simple endocarditis is by far its most fre- •quent form : and of simple endocarditis the cases in which the danger, whatever it has been during its progress, entirely passes away when the inflammation ceases, are the vast majority, and those in which it remains are the very few. But of simple pericarditis, and of pericarditis combined with endocarditis, the •cases in which the danger passes away are the few, and those in which it remains are the many. Seldom to endocarditis, oftencr to pericarditis, and very -often to the complex of both, there succeeds an interval of days, or of weeks, even of many weeks, during which it is still doubtful whether the patient will live or die. Now there is no more obvious and intelligible cause of life heing left or not left in a state of present safety, or near to it or far from it, than the mere amount of damage done to the heart by the by-gone inflammation. After the subsidence of simple endocarditis, the endocardial murmur will often remain as loud or louder than ever, showing that the damage done continues, while at the same time there is no other attendant condition which denotes the smallest danger. Surely in such cases there is reason to believe that the damage is small, con- sisting in those little beads of lymph deposited upon the free edge of a valve, which dissection discloses as the eftect of acute inflammation. And, though there be no reparation of this small damage either now, or for weeks or months to come, life in the mean time is perfectly safe. No doubt from the valvular unsoundness produced by endocardial inflammation, though small in degree, there is a danger, but it is not yet ; and it is for the sake of preventing this remote danger that its perfect reparation, small as it is, is especially desirable, and not for the sake of present safety. But, after the sub.sidence of simple endocarditis, the murmur 230 CLINICAL MEDICINE. [lECT. XVIII. wliicli remains will in rarer cases be accompanied by conditions, tbat bespeak danger, by excess of impulse and by prsecordial fluttering and by extreme anguisli. And here it may be believed that a greater damage has taken place. For acute inflammation of the endocardium can do more than deposit specks of lymph upon the edges of a valve ; it can spread a layer of lymph over a great superficial extent, even (as I have seen) throughout an entire auricle ; it can accumulate masses of lymph as large as a pea or a cherry-stone, or larger, and leave them pendulous into the cavity of the ventricle ; or it can destroy half a valve by ulceration, or carry away a long strip of the membrane, and lay bare the muscular substance ; or, (as I have known,) it can penetrate from one auricle to the other, and lay them both together. Here are some forms of injury too destructive to admit any such degree of reparation as will allow life to go on at all ; and here are others not destructive enough to make such reparation altogether imj)Ossible, but only capable of it slowly, and likely to keep life in jeopardy until it is accomplished. Acute pericarditis being more frequently fatal than endo- carditis, dissection has made iis more familiar with the nature of the organic injuries which immediately follow it. Their forms and degrees are quite enough to accoimt for the many various events familiar to clinical observation. There is that organic injury which is too great to be borne, and which must kill at once, and there is that which is too small to bring life into any present hazard. In one case there is no surviving it, the injury is so great, and in another there is no dying of it, the injury is so small. And as in pericarditis there are many degrees of organic injury lying between the greatest and the least disclosed by morbid anatomy, so between present death and j)resent safety there are degrees and vicissitudes of sufter- iiig, I:nown to clinical observation, which may come sometimes- nearer to one, and sometimes nearer to the other. IS'ow some clear notion of the real detriment done by peri- carditis, and of the much or the little that remains to be re- paired is needed to help us in understanding what. its reparation must be as a living process, and why it is so difficult and so precarious in some cases, and so easy and so sure in others. Coagulable lymph adhering to the surface of the ]3ericardium> LECT. XVIII.] KEPARATION OF INJURY. 231 and fluid cfi'used into its cavity, each of various amount and of various relative proportions in several instances, constitute the material results of recent acute inflammation. The coagulable lymph adhering- to the surface may be deposited in distinct and broken patches, or it may assume the form of an adventitious membrane. The adventitious membrane may cover a small portion only of the pericardium, or it may serve as a complete lining to it, following its reflections both where it is loose and over the heart itself and over the large blood-vessels. This lymph varies in consistence, from the least possible degree of tenuity, which can preserve a continuous texture, to the thickness of more than an inch. On one' side, where it is applied to the pericardium, its surface is imiform ; on the other it varies. Sometimes this latter is dotted all over with minute ajiertures or pores at regular distances, which give it a reti- culated appearance, like delicate net-work. Sometimes it is intersected with lineal elevations, forming a grosser reticulation, not unlike the second stomach of the calf. Sometimes it is studded with minute tubercles ; and sometimes rendered rough and very unequal by partial accumulations of soft flocculent matter upon it, like large pieces of sponge, or tow. From the slight red tinge often observed in this adventitious membrane, it might be suspected that blood-vessels are continued into it from the pericardimu. From its capacity of receiving injection from the coronary arteries, it is certain that they are so. The fluid eflused into the cavity of the pericardiiun in con- sequence of inflammation, varies very much in quantity : some- times it does not exceed the quantity of fluid ordinarily found there ; but its appearance will always show it to be the pro- duct of disease. Nearly four pints are mentioned, upon good authority, as having been found in a case of inflammation. I never found more than half as much. This fluid is sometimes of a clear lemon colour, and transparent; sometimes less trans- parent, from an intermixture of filamentous flaky or mem- branous substances ; and sometimes not at all transparent, but, like unstrained whey, from an intermixture of pus. In different cases it presents every tinge of red, from an intermixture of blood in various proportions, and sometimes it is a mere turbid serum. 232 CLINICAL MEDICINE. [lECT. XVIII. Here is detriment enougli done to the natural and healthy structure of the pericardium. Here are substances enough superadded to its natural and healthy substance. But even to the eye of the anatomist they bear the characters of transition and variableness, and not of permanency. They contain the evidence of something in progress, which death has arrested. Had life continued, either disease would have increased them, or reparation have lessened them. They could not have re- mained as they are. AVhat death has in truth arrested, is either the growing fabric of disease, or the growing work of reparation ; for these arc the appearances found, when life is cut short, while we are still employing active remedies for active symptoms, the symptoms (we believe) of inflammation. And these too are the appearances found, when active symptoms have existed, but are now gone, and active remedies have been used but are now aban- doned, and inflammation (we believe) has ceased; and yet life is cut short while wo are helping the faint efibrts of the con- stitution, and still waiting and hoping for reparation to reach the point of present safety. What is thus shown to be true of endocarditis and pericar- ditis, when each is taken alone, is, without further explanation, at once seen to be true of them when both are taken together. It is simply this, that the different amount of organic injury remaining, after the inflammation has ceased, is one sufficient reason of reparation being found quick or slow, easy or difficult, in different cases, to reach the point at which life shall be safe. These are matters plain and obvious enough, it is true. Nevertheless they need to be strongly insisted upon, for they have an important bearing upon practice. In every case of cardiac inflammation, think of its local effects, and then strive by all means to cure it, and above all, strive to cure it quickly. For the longer it lingers, the greater will be the amount of organic injury which it leaves behind, and the greater the likelihood that a painful precarious period will succeed before life is safe. But besides the absolute amount of injury done to the heart itself, whether small or great, other conditions, just as plain and palpable, often exist elsewhere, which have a share in deter- mining how soon or how late, with what ease or what difficulty, that measure of reparation shall take place, which is to put the life of the patient in safety again. JLECT. XVIII.] HINDRANCES TO REPARATION. 233 The coincidence of inflammation of the lungs with inflam- mation of the heart * has been already pointed out. That in- flammation may be of any or of every pulmonary structure. It may be bronchitis pneumonia or pleurisy ; one of them alone, or two of them, or all of tliem united. And these, when they so occur, are apt (it will be remembered) to run on to those terminations which we most deprecate, to large bronchial eff'usion, to large pulmonary congestion or hepatization, and to single or double hydrothorax or empyema. Now, as the life of the patient was doubly jeoparded by the coincident inflammation of the two vital organs while it was yet in progress ; so, when it has come to an end, the remaining organic injury of both makes the work of reparation longer and more difiicult, and postpones the safety of the patient to a more distant day. But, as the peril of inflammation, while it is yet progressive, is not always in exact proportion to its extent within the part, so neither, when it is brought to an end, are the chances of safety and reparation to be measured absolutely by the amount of the material injury done. The whole body has to do with the health of its single parts, and it has to do with their diseases also, in originating and maintaining, in arresting and repairing them. Look to the mere matter and bulk of things, and think only of what is visible tangible and audible in parts, and you will come to strange conclusions : you will see people die of too little to kill them, and see people survive what is enough to kill them twenty times over. But if, in such events, you would know what it is that mainly kills, and what that mainly saves, you must look out of the part into the constitution at large : you must do so especially in diseases of the heart. It goes hard with weak, scrofulous children, and with men and women whose habitual health is no better than an habitual infirmity, Avhen they come to sufier inflammation of any vital orsran : but it often ffoes still harder with them after the inflam- mation has ceased, if much be left for reparation. Subjects of this unhappy constitution will struggle through a combined attack of inflammation of the heart and lungs, and hold out * Vide Lecture IX. 234 CLINICAL MEDICINE. [lECT. XVIII. well until it has come to an end, and will afterwards die during the halting, ineffectual efforts of reparation, or only after a very long time, and many vicissitudes, will reach the point of safety at last. Their constitution has given all it could to the disease without dying, and it has now not enough, or scarcely enough, left to give for reparation, or, rather, for that degree of repara- tion which is needed for present safety. What that degree is, cannot be accurately told. Yet the liabitual health of individual patients will furnish a kind of measure of what it is likely to be in them. The worse their natural constitution, the less injury can be borne, and the nearer must the injured organ have returned to the state of its former integrity before their life is safe.. This, unfortunately, is as much as to say that the most reparation is needed, where, in the nature of things, the least can be expected. As it has been chiefly in weak, scrofulous children that I have witnessed this struggle for life, or this state of insecurity, most prolonged after the inflammation has ceased, I shall take from them the type of certain conditions which I wish to describe. Some, when the time has come that they should show the visible tokens of recovery, have exhibited a perilous prostration of the nervous system, and such alternate rallying and sinking as have kept the bystanders in ajjprehension of their death for weeks and weeks together. But recovery from this condition is more frequent than death, such a recovery, I mean, as reaches a state of present safety, but still with an unsound heart. Some, when we have looked for their visible recovery, have sunk into anaemia ; ana}mia so extreme and so protracted, that with them it seemed as if their food would never again be duly converted into blood. Yet these, too, may, and commonly do, at length reach a state of present safety ; but still with an misound heart. It is most important to remark that, while this prostration of the nervous system, or this antemia, has lasted, whether for weeks or for months, reparation has been at a pause. JS^either the heart, nor the lungs, nor the pleura, if they happen to have suffered damage, have seemed to make any progress in tliemeau time towards regaining that degree of soundness of which they ■ are capable. LECT. XVIII.] HINDRANCES TO EEPARATION. 235- During the pause of reparation, and in the midst of thia nervous faihirc, or this impoverislmient of blood, the feet and ancles are apt to swell, an event which is looked upon as a mere accident of debility, and is hardly taken into account in calcu- lating the fate of the patient. But sometimes this small osdema will rise rapidly into general droj)sy, and serum be found wherever it can find its way, filling cavities, and distending the cellular texture throughout the body. Thus, the largest and most pervasive of all diseases, which is commonly reserved as the last fatal result, when the heart has reached the most ex- treme degree of disorganisation that it is capable of, is some- times an early consequence of its acute disease, arising partly out of the very damage done by the disease itself, and partlj'' out of the feeble constitution, which it has befallen, being put to a severer trial than it can bear. But I have seen recovery even from this condition, the dropsy entirely dissipated, the patient again safe, and every organ again free from complaint, except the heart, which has remained per- manently unsound. Yet it may not be either the amount of injury suffered by the heart itself or of concomitant injury suffered by the lungs, or yet the weakness or pravity of constitution which makes reparation a halting, lingering process ; it may be none of these that, after inflammation has ceased, still keeps back the patient from the point of safety. Nay, the structural damage may have reached that degree of restitution which should bring security, and yet there may be something less material and less defineable, but fearfully real, which continues to hold life in jeopardy. Disease is a great physiological teacher. Perhaps it is the greatest of all. It institutes experiments which we cannot imitate, and so tells us many things which, but for it, wo should never know. I never laid bare a living brain, a living spinal marrow, or a living heart. I never took up a living nerve with the forceps, or noted the behaviour of these organs severally or reciprocally under modes of irritation which were of my own contrivance ; yet, I have read of experiments which I never performed, and never could bear to see ; and I may have learnt something from them ; something, how dearly purchased ! But above and beyond all knowledge so obtained, there is a 236 CLINICAL MEDICINE. [lECT. XYIII. knowledge conveyed by the living phenomena of diseases, and by them only. Coincident with symptoms referable to the endo- ■^cardiuni or pericardium, in one case there has been maniacal ■delirium, in another epileptic or tetanic convulsion, in another chorea, in another coma, in another fatuity. The patients have died, and dissection has found the brain healthy, and the spinal marrow healthy, and the endocardium and the pericardium alone inflamed. Now, have all the experiments that were ever done or perpetrated upon living animals given intimation of an influence like this, proceeding from the heart to the brain, and from the heart to the spinal marrow ? Has not disease here been our teacher ? All these aifections of the brain and spinal marrow, coming on in the course of inflammation of the heart, should be carefully watched and ministered to from the least to the greatest. Wild -delirium, epileptic, or tetanic convulsion, chorea, coma, fatuity, . are the greatest and the rarest ; and mutterings, reveries, transitions from torpor to excitement, subsultus, are the least and the most frequent. But they are all akin one to another. The least may mount up to the greatest, and the greatest run down to the least. Moreover where any of these have been during the progress of the disease, and the patient has survived, they are liable to be ■continued or to recur during its reparation. Or they may then arise for the first time, as if they took advantage of the weak- ness and exhaustion of the nervous system. A year or two ago I saw a young lady seventeen or eighteen years of age, who had suffered acute rheumatism, and with it inflammation both of the endocardium and pericar- dium. As active symptoms declined and active remedies were withdrawn, her extreme weakness became apparent. Her nervous system was laid prostrate. Her reason began to totter, and in a few days her mind was entirely gone. And thus, still without reason but not without consciousness, living but not rallying, and her vital functions scarcely kept going from hour to hour, she remained for several weeks. At length mind and body recovered together by little and little, and she reached the point of present safety. But neither mind nor body were so far re-established, while she continued under my observation, . as to enable me to see to what condition they Avould permanently LECT. XVIir.] NKRVOUS SYMPTOMS IN HEART DISEASE. 237 revert. The heart beat with some excess of impulse, and with a loud endocardial murmur ; and I reckoned on permanent adhesion oi' the pericardium and permanent unsoundness of the mitral valve. But, moreover, I still feared and questioned what would be the eventual state of her mind, and still looked to some possible evil being engrafted upon her extreme weakness,. 8he was taken home by her parents to the north of England, and her mind was perfectly restored. But after the lapse of a. twelvemonth she died of pulmonary consumption. A young man, twenty-eight years of age, after having-, suffered rheumatic attacks, which had continued subsiding and returning during eight weeks, came at length under medical care. He was now in a state of fatuity, and so continued until, his strength daily diminishing, in three weeks more he died, " The pericardium was free from disease ; but upon the mitral valve, near its edge, there was a perfect row of small slender bead-like warts."* The case is reported by Dr. Watson, and is- valuable, among other reasons, especially for this, that it authen- ticates the pathological connection of these awful affections of the brain Avith endocarditis. Their connection with pericarditis is the more acknowledged and familiar fact. The same physician relates another case, which I will abridge. A young man, twenty-four years of age, suffered an attack of acute rheumatism, which was of a shifting character, and confined him to bed six days. Leaving his bed prema- turely, he suffered a relapse, and afterwards continued slowly mending until the eleventh day, when he became restless and delirious. Hitherto the symptoms referable to the heart had been equivocal, consisting chiefly of pain. At this time, when Dr. Watson first saw him, he found the heart's disease suffi- ciently attested by its irregular action, its excessive impulse, and its loud endocardial murmur. But it was the state of the brain, which had now become the great object of interest and appre- hension. A sort of stupor, or obstinate taciturnity through the day, passed into distinct delirium at night. Such was his con- dition for six days, when stupor was exchanged for restlessness, and restlessness for maniacal frenzy with screaming and vocife- ration. And then tetanic convulsion alternated with coma, and in three days he died. Upon dissection, at a small space of the * Med. Gazette, vol. xvi. p. 93. 238 CLINICAL MEDICINE. [lECT. XVIII. posterior surface of the heart, the pericardium presented an adhesion of recent lymph, and the mitral valve and the aortic valve numerous bead-like vegetations.* Dr. Watson alludes to another case, without describing it. A young woman, nineteen years of age, went through an attack of acute rheumatism, accompanied by inflammation of the endo- cardium and pericardium : " She lived two months from the commencement of her cardiac disease ; during that period she was at times wildly delirious, at times stupid, taciturn, and almost idiotic, and at times quiet and rational, "f In one of these three cases given by Dr. Watson, there was no visible trace within the brain of any thing different from healthy structure. In the other two, there was some fulness of the blood-vessels of the brain and some slight serous effusion. Whether these last really partook of the nature of disease, i.e. of inflammation ; and if so, what share they had in producing the symptoms, I will not stop to inquire. My purpose is, to make you aware that, when endocarditis and pericarditis have ceased to threaten life in their own way and by their own direct instrumentality and their reparation has already begun, they may yet induce perils of a new kind, and death after a new manner, through the troubled functions of the brain and spinal marrow. * Med. Gazette, vol. xv. p. 94. t Ibid. LECT. XTX.] PERMANENT UNSOUNDNESS OF HEART. 239 LECTURE XIX. PKRMANENT UNSOUNDNESS OF THE HEART FROM THE INJURY DONE BY ENDOCARDITIS AND PERICARDITIS BEING IMPER- FECTLY REPAIRED. CONSEQUENCES. SECONDARY INFLAM- MATIONS.— THEIR CLINICAL HISTORY. THEIR CLINICAL DIAGNOSIS. ITS EXTREME DIFFICULTY AND UNCERTAINTY. — SEVERE AND FATAL CASES. COMMENTARY UPON THEM AT LARGE. We have been considering that important period of the clinical history of endocardial and pericardial inflainmation which inter- venes between the cessation of the disease and the restitution of the organ, not to a state of complete soundness, but to a state compatible with present safety. But of all organs in the body, the heart can least endure any imperfection of its natural structure ; and yet in the vast majority of cases where the endocardium or the pericardium has been inflamed, some imperfection of structure is left behind : hence the great interest which belongs to them prospectively. Now seventy such cases occurred to me at St. Bartholomew's Hospital in the course of five years. Seventy patients, who had suffered endocarditis or pericarditis or both, were restored to a state of present safety, but not of perfect soundness, and then discharged. It will be by the merest chance that any one of them will ever be seen by me again ; yet, could they all have been kept within the reach of medical observation for the rest of their lives, they would without doubt afford some valuable results. But the conditions of medical practice do not allow such lengthened observation of any seventy individual patients. Our own lives must needs last for many generations to furnish us an experience of other men's diseases in their entire course, which last the half or the whole of theirs. But do not let us make the difficulties of clinical observation under any circumstances greater than they are. Its end, indeed. 240 CLINICAL MEDICINE. [lECT. XIX, can never be answered by less intercourse with the sick than is needed to mark each material change that occurs in the progress of the disease : more than this it does not require. Thus when the disease is of an acute kind, and runs its course in five or ten or twenty days, the physician's intercourse with the patient must be daily, and perhaps more than once a day. For every day, and, perhaps, more than once a day, changes are apt to take place, which must be noted as they arise, if they are to be successfully ministered to. But when the disease is chronic, and lasts five or ten or twenty years, this intercourse need not be oftener than at intervals of months, or even once or twice a year ; for it is only at such intervals that those changes are- apparent which are likely to call for his interference. And these surely are easy terms of making the clinical observation of chronic disease adequate to its purpose. But it is the oppor- tunity of making it even upon these terms, which is so difiicult to be obtained. How rarely has it happened to any of us tO' have numerous individuals the subjects of any given chronie disease, so constantly within our reach, that we could see them and inquire into their condition two or three times a year, for many years together, or for the whole of their lives I * Thus all I know, and all I can tell, of what is apt to result from the heart left in an unsound state by an attack of by-gone inflam- mation, is drawn, not from following up any certain number of cases from first to last, but from such accidental experience a& in the course of years has fallen to my share, and been furnished by, here and there, a case which I have happened to meet with. There are some truths in medicine which are based upon numbers and upon statistical calculations, and which thus carry with them the highest proof of their certainty. And there are- others which are and only can be picked up piecemeal and by accident; yet these maybe equally truth s in themselves, though they are not equally known to be so : they may be called chance- truths, lying out of the high road of philosophy ; but Philosophy is not wise, if she does not step aside to gather them. You would wish to know the fate of those who are left with hearts damaged by the effects of inflammation ; and could I * Vide p. 94, for an explanation of the different ways by which we gain our knowledge of acute and chronic diseases. LECT. XIX.] PERMANENT UNSOUNDNESS OF HEART. 241 give you a summary of events drawn from a complete history of threescore and ten cases, I should be giving- you both the truth, and withal the hig-hest proof of its certainty. But I can only g-ivc you sing-le and scattered notices of events drawn from a partial observation of such cases as have happened to fall in my way. And thus I may still be giving- you the very truth, but without the highest proof of its certainty. Such cases, then, as have fallen in my way have taught me, that after endocarditis or pericarditis have left the heart in a state of unsoundness, but life safe for the present, the period to which life may be still continued is very various. It may be a few months only, or a few years ; or it may be many years, even ten, or twenty, or thirty. Of these facts I am certain ; but I cannot array them numerically and statistically : and because I cannot, I can deter- mine no relative proportion between those who survive months and those who survive years ; or those who survive few years, and those who survive manj^ : yet the facts are sure. And, although they come from casual observation, they admit of being grouped and generalised, and dealt with instructively, and fair reasons may be given for their being such as they are. Such cases have two principal terminations. Either there may be a renewal of the same disease in the unrepaired struc- ture, or in some other structure of the heart, or, the unrepaired structures remaining as they were left, may become the element of further detriment to the organ, which is different in kind. Each of these results shall be taken and considered separately, and in the mean time it will, perhaps, ajDpear why the course of events, and the duration of life, are so various in those who owe their unsoundness of heart to a common cause. Each of these results shall (I say) be considered separately; for, although they are found mixed together, the things them- selves are separate in kind. The one, the secondary inflamma- tion, partakes of the nature of an accident ; the other, the progressive disorganisation, springs from an inevitable tendency. The thing- of accident may or may not be added to the thing of inevitable tendency at any period of its growth. Fresh inflam- mation may or may not arise in the heart already unsound, and tending to further disorganisation. IG 242 CLINICAL MEDICINE. [lECT. XIX- Let us first consider tlie clinical history and clinical diagnosis of the incidental secondary inflammation. "WTioever has had his heart once inflamed (whether it he the endocardium or pericardium which is the seat of disease) and left thenceforth permanently imsound, may have it inflamed again, and he may die of the second inflammation as he might have died of the first, or he may escape with his life as he- escaped before. And not once only, but again and again, his heart may be inflamed afresh, and in some of these attacks he may die, or he may struggle through them all and reach a state- of present safety for the twentieth time. This renewed inflammation may be either of the endocar- dium or of the pericardium, or of both. It may arise, as it did at first, out of an attack of acute rheumatism ; or, though it came at first from acute rheumatism, it may come independently of it afterwards. Remember, acute rheumatism is (if we maj^ so speak patho- logically) the great parent root of inflammations of the heart. It is also, undoubtedly, one of those diseases for which men are found to have a constitutional proneness. When it has been once sufiered early in life, there is a fearful likelihood that it will be oftentimes sufl^ered again. Moreover, the first attack is generally the type of every attack which is to follow. They may not all be equally severe, but they will all take the same course, and involve the same structures. If the first involve the heart, so, probably, will they all. Thus, the thought of a healthy child first seized with acute rheu.matism is full of sor- rowful forebodings. Its heart is very likely to be inflamed, and it may die : but, whether it die or not, its heart is very likely to be damaged for life. Having had acute rheumatism once, though it may perfectly recover, it is very likely to have it again ; and, whenever it again has acute rheumatism, it is very likely again to have inflammation of the heart as its accompaniment. But, certain causes, which are not apt to produce inflamma- tion of the heart de novo, are found capable of renewing it in its half-repaired condition. A single exposure to cold, a single act of intemperate indulgence, or some unusual bodily effort, in a man of unsound heart (unsound from the effects of former inflammation), will sometimes bring life into jeopardy, and LECT. XIX.] SECONDARY INFLAMMATIONS. 24iJ sometimes kill ; and, dying, he will disclose in the endocardium, or the pericardium, indubitable traces of a new inflammation, mixed with the effects of the old. Still, if what I have seen may bo taken to represent what g'onerally happens (for I have no statistics to appeal to in this matter), when the unsound heart is re-inflamed, it is almost always in consequence of a fresh rheumatic attack ; but it is not exempt from the possibility of being re-inflamed by other causes. There are some other circumstances belonging to the clinical history of this secondary inflammation of the heart which deserve to be mentioned. Like its primary inflammation, it also is apt to be associated with pulmonary inflammation, with genuine pneumonia, with bronchitis, with pleurisy. Then, as to the secondary carditis itself, it may be either of the endocar- dium or of the pericardium, or of both. Of these structures, when both have been formerly inflamed, and both left in a state of imperfect reparation, one alone, or both simultaneously, ma}" be inflamed again ; or, when one only has been formerly inflamed, and left in a state of im^^erfect reparation, it may be that the other, which was then unaftected, is that which is now inflamed. In this case the inflammation, while it is secondary as belonging to the heart, is still primary in respect of the particular structure which it attacks. Such, as far as I know, are the conditions under which fresh inflammation is apt to arise in a heart which previous inflamma- tion has left unsound. Such is its clinical history ; we now come to its clinical diagnosis. Inflammation of a heart previously unsound does not submit itself to so easy and sure a diagnosis as inflammation of a heart previously healthy. Diagnosis is greatly helped by contrast. Where yesterday there was perfect health and to-day there is disease, a transition has taken place from opposite to opposite. All we see, and all the patient feels, is full of novelty and surprise; and, that disease is involved in the change, we know at once, and we soon And out its nature and its seat by a closer scrutiny. But, where yesterday there was not perfect health and to-day there is disease, doubtless here, too, a change has taken place, yet not so marked a change that either the patient from what he feels, or the ph^^sician from what he sees, can be sure that m orbid 244 CLINICAL MEDICINE. [lECT. XIX. actions of a new and fatal tendency have arisen whicli were not there before. Thus inflammation will often make secret progress under cover of an habitual infirmity. Organs that are unsound of structure are often in pain, and often baffled in function, and, where new disease befalls them, how otherwise can they betray it but still by pain and still by irregular function ? The heart that has a valve thickened and an orifice contracted, or its pericardium adherent, is apt to suffer pain, and to palpitate and beat out of time. And, when in this condition inflammation assails it, it cannot do more than still suii'er pain, and still palpitate, and still beat out of time. Well ! but the heart will tJien do all this in excess, and the excess, you may think, will surely be a sufficient token of the new disease which has supervened. Not so surely as you may imagine. There are no certain measures of pain, of palpitation, and irregular action, annexed to a given amomit of unsoundness in the heart. These are ever varying between the least and the greatest degrees, while the heart's unsoundness remains exactly the same. The natural sensibilities of the organ render it obnoxious to a multitude of impressions, some from without and some from within the body, some appreciable and some not, which are perpetually disturbing its feelings and its functions in its state of health. And how much more is this likely to be the case in its state of unsoundness I And if so, then surely of inflammation ingrafted upon this unsoundness, the mere excess, to which we allude, must be a most precarious token. In short, it is a general truth, never formally declared perhaps, but well worth our notice and of great practical im- portance, that organs must be previously sound to show clearly the nature of the injury or malady Avhich they suffer, and that, in proportion as they arc unsound, they are spoiled for giving true expression to the ills which afterwards befall them. The brain, the lungs, the kidneys, the abdominal viscera, being pre- viously sound and healthy, proclaim themselves inflamed at once. But the brain, with a clot of blood lodged within it, tuberculated lungs, granulated kidneys, a scirrhous stomach, an ulcerated bowel, have their functions and sensibilities in utter disorder and confusion, and are not in a condition to give reqiiisite notice of a new inflammation. A broken instrument LECT. XIX.] SECONDARY INFLAMMATIONS. 215 is ever out of tune : whatever ]coy you touch, you can never bring- out the right note corresponding with it. Jiut in the heart, you may say, there arc always the auscul- tatory signs to look to. In default of all others, these have been often found enough to settle our diagnosis. Can they do as much now ? Are they now self-sufficient ? Are they even auxiliary ? No ; they are neither ; they even fail ns altogether. In the first inflammation of the sound heart, they M'cre every thing. In all after inflammations of the unsound heart, the}^ are nothing. This is the fact, and it is readily explained. In the first inflammation of the pericardium, there is the exocardial murmur made by the moving of its roughened surfaces upon each other. But in after inflammation of the pericardium, exocardial murmur there is none, and none can there be if its surfaces adhere completely. And if they adhere partially and there be a murmur, it will not have the proper attrition in it, and so will want the exocardial character. In the first inflammation of the endocardium, there is the endo- cardial murmur, made by the recent lymph deposited upon a valve ; and the murmur continues ever afterwards, when the valve so far falls short of perfect reparation as to remain thickened or puckered. And then in after inflammations, observe the puzzle. There is the permanent murmur of the old unsoundness and the recent murmur of the new disease ; but how much is due to the old, and how much more to the new, is too delicate an affair for the nicest ear to discriminate. But all that has been said still waits for its conflrmation by cases. And the cases which I am about to relate are chiefly fatal ones. For so much doubt and perplexity confessedly hang over the clinical diagnosis of these secondary inflamma- tions of the heart, that no fair illustration can be given of them without the proofs afforded by dissection after death. Let it not, however, be therefore inferred that the fatal cases are the most frequent. My impression, on the contrary, is that the secondary inflammation, whether of the endocardium or the pericardium, is rarely fatal. It may add sometimes a little and sometimes much, and always something to the permanent unsoundness of the particular structures, yet it seldom produces present death, but leaves it to arrive at last from the gradually and slowly increasing disorganisation of the entire heart. 246 CLINICAL MEDICINE. [lECT. XIX. In presenting llie few cases necessary to illustrate our present subject, I must be allowed to comment upon them as I go along. For it is of no use relating cases at all, unless you may take them in i:)ieces and examine them as men do models in a workshop. In the following case an attack of acute rheumatism, two years before, had been accompanied by inflammation of the pericardium, which had left the heart permanently unsound. A fresh attack of acute rheumatism was accompanied by inflam- mation of the endocardium, which j^roved fatal. Amelia West, aged 22, was carried into the hospital, Sep- tember 24th, 1836. Her countenance was pale, her skin hot and perspiring, her tongue furred and bordered with red at the edges, and streaked with red dovrn the centre. Her pulse was 120, and very full and hard withal. Many of her larger joints were greatly swelled and very painful, and upon the skin, covering some of them, was a blush of red. Her res]3iration was short and difiicult, anU her heart beat with an excessive impulse. Her whole chest (she complained) was bound so tight that it could not expand, yet auscultation found nothing amiss in the lungs ; and in the heart it only found what was already evident to the touch, an excessive impulse. It detected no unnatural sound. Such were her present symptoms. Her previous history, bearing upon her present condition v.-as this, — she had siifi'ered 1wo severe attacks of acute rheuraatii^m bclbre, and this was the third. The last, two years ago, was accompanied by an aflcc- tion of the chcd, for which she was bled. Her present attack began -udth wandering pains, which followed an exposure to cold, a month ago. These, together with sickness and headache, continued, and showed neither increase nor abatement until five days ago, when fever was lighted up, and the joints began to swell, and the heart to palpitate, and the respiration to fail, and all had been becoming wor&e and woree irom that time forth until now. Here was perilous disease in progress : but where was it, and what was it ''t Our auscultation excluded the lungs : it must then be in the heart. The inordinate irajDulse and all the attendant anguish, arising and increasing as the acute rheu- matic symptoms arose and increased, seemed to determine that JLECT. XIX. J .SECONDARY INFJ-AJUfATIONS. 247 liere must, be its scat. ]jut was it inflaramatioii, and in what part of the lieart Avas its scat ':' Tlio mere excess of impulse and the severe anguish, did not settle the questions. Symptoms may be very striking- and prominent in themselves, and yet be very indefinite in what they denote. And such were these. But further assuming (as it was practically right to assume, and we did assume) that the disease was inflammation, either of the endocardium or the pericardium, was it ingrafted upon .an unsound heart, or had it come de novo in a sound one Y And this we could onl}' determine by learning in what state her last rheumatism had left her, and her present rheumatism had found her. But the poor patient was too simple and too ill to give -any intelligible account of the matter ; and we knew nothing of her until wc found her in her present perilous condition. Nevertheless, from the fact that in a former attack of rheuma- tism, the chest was so affected as to need bleeding for its relief, we ventured to consider the present inflammation (if inflammatio]i it was) ingrafted upon an unsound heart. But to proceed with the case. Here were symptoms not to be trifled with. The fever ran very high. The proper rheumatic symptoms and all that concerned the joints were very severe, and very severe too was all that concerned the chest, and, if it were inflammation, very perilous and very rapidly progressive. The dyspnoea and prsocordial anguish called for innnediate relief by some remedy capable of a present imjDression. Ac- cordingly for this a full cupping was practised. Also the renewed inflammation was to be abated, and ultimately abolished. Accordingly mercury was directed, with a view of bringing the constitution as soon as possible under its influence, and ten grains of calomel immediately, and ten grains of calo- mel on the following morning, were given, united with opium. The dyspnffia and tightness of the chest were at once greatly •diminished, and the respiration suffered no urgent distress for the five following days. But no restraint was yet put upon the violent impulse of the heart. Diarrho3a arose on the third day, -and interfered Avith the further use of calomel, and so Dover's powder was employed to meet the urgency of this particular symptom, as well as to quiet the nervous system. On the fourth day the gums were decidedly sore, and swollen, and the tougne was loaded with a yello^^' fur. The 248 CLINICAL MEDICINE. [lECT. XIX proper rheumatic symptoms were noarl}^ gone, and the symp- toms belonging to the chest, were restricted to the heart, which beat with more violence than ever, but still without any unnatural soimd. On the fifth morning, after a night of much sleep, she was said to wake much more comfortable, and so to continue until noonday, when suddenly the breathing became very short and painful, and the nostrils were dilated at each inspiration, and the countenance betokened great distress. The heart continued to beat with the same violence, but with less frequency, and now for the first time with a slight systolic endocardial mur- mur. The gums were very sore. A mustard cataplasm was applied to the chest, and the Dover's powder was continued. The cataplasm gave great relief. On the sixth morning, it was found that the relief of the chest procured by the cataplasm, had continued through the night, until nine in the morning ; and then she became faint, and all the distress of yesterday returned, and Avith it a cold perspiration, and a sad struggle to dislodge some scanty jjhlegm which vexed the trachea. The heart beat both with less force, and less frequency, and no endocardial murmur was percej^tible. The mustard cataplasm was re-applied, but no relief followed. On the seventh morning, after a night of agonising distress, she w^as bathed with cold perspiration ; the trunk of the body was bent upon the knees, and thus she was contending for breath, and striving to clear the throat by an effort of coughing, but in vain. The heart was beating feebly and tumultuously, but Avithout unnatural sound. Yet in this condition she struggled through another night, and at nine o'clock the next morning, after lying an hour upon her back, she expired. It was matter of interesting speculation what would be fomid on examination after death. As far as auscultation could be trusted for negative results, it showed that the lungs had no share in the disease. Symptoms referable to the heart, viz. pain and inordinate impulse, v.'hich arose with the new rheu- matic attack, and afterAvards continued, pointed to this as the organ affected. But these symptoms were not enough to denote either the nature or the seat of the disease. A systolic endo- cardial murmur Avhich came one day, and was gone the next, — viz. the day before the patient began suddenly to sink, — was LECT. XIX.] SECONDARY INFLAMMATIONS. 249^ the only symptom to suggest that the seat of the new disease was tlie endocardium. l^oth kings had contracted extensive and very intimate adhesions to the ribs anteriorly. The left pleural cavity, where it was free, contained about three ounces of sennn. The lungs and bronchial tubes were healthy. The pericardium was uni- versally and closely adherent to the heart. The intervening matter was thick, and at some parts as condensed, and as hard as cartilage. Both auricles were greatly dilated and choked with coagula. The right ventricle was simply dilated in a moderate degree ; the left ventricle both greatly dilated and greatly hypertrophied ; and in its large carnea) columna; were some peculiar deposits giving them the appearance of grained oak. The lining membrane of both auricles was opaque and thickened. Both the tricuspid and the mitral valves on their auricular aspects, and near to their edges, had numerous beads of lymph growing from the surface, but leaving it entire, when they were picked off by the forceps. In the mitral valve they formed almost an entire circle : on the tricuspid they were fewer. Among them there were some that had become much larger than the rest, even as large as a pea, and were loosely pendulous into the ventricle. The auriculo- ventricular orifice had not on either side of the heart undergone any obvious contraction. Both the pulmonary and aortic valves were free from disease. The liver was enlarged, and congested with bile and blood (W. XX. 121.) The next case, as it ran on speedily to its fatal termination, gave a short, and striking, and rapid proof, how the previous unsoundness of the organ can mar the diagnosis of its subsequent diseases. An attack of acute rheumatism, a year and half before, had been accompanied by inflammation of the pericardium, which had left the heart permanently unsound ; and a fresh attack oi rheumatism produced fresh inflammation of the j^ericardiuni.. which killed. The symptoms plainly belonged to the heart, and plainly showed that it was most perilously affected. But they were not definite enough, either to characterise the nature of its disease, or to denote the texture of the organ which it occupied. '250 CLINICAL -MEDICINE. [lECT. XIX. William Bean, aged 12, Avas admitted into the hospital, Decciubcr 16th, 1833, and died on the evening of the 19th. His symptoms on admission were these : — skin hot and dry, tongue moist and white, pulse 140 and jerking, swelling and slight redness and pain of the right wrist and hand, but of no other part of the body : breathing hurried and short, with a slight cough : pain in the precordial region, increased by ]3i"es- sure between the ribs, and by deep inspiration ; excessive impulse of the heart ; inability to lie on the left side. Aus- cultation found the lungs admitting air freel}' in every part, and at a circumscribed spot beneath the cartilages of the third a,nd fourth ribs on the left side, the systole of the heart was heard, accompanied by an unnatural sound of an indefinite kind. The sound was lost when the stethoscope was removed from this spot in the least degree. The history of the present attack could not be made out with all the exactness which Avas desirable. The boy's father, and mother, and himself, were all in a difierent story as to when he Avas taken ill, and whether his chest or his limbs were affected first. The poor often take small account of what they or their children suifer short of their being absolutely incapa- -citated ; and this very circumstance is apt to operate as a bar to the information Ave seek in many an interesting case. But we who knoAV the poor are not surprised at it. They do and must endure daily a measure of (AA^hat Ave should think) phj^sical evil ; but habit naturally blunts their jJcrception of it to themselves, and their sympathy for it in others. ^Vnd well it is that it is so. Thus much, hoAvever, as to our present case, was pretty certain, that the rheumatism had existed a week at least, and the symptoms referable to the heart several da^^s ; that the rheumatism had occupied the knees and ancles of both lower •extremities as Avell as the hand, and noAV might be considered on the decline ; and that the symptoms referable to the heart (Avhich were in truth habitual symptoms of long standing now greatly aggravated), had been becoming daily Averse and worse. It appeared, too, that the attack commenced Av^ith a rigor, fol- lowed by heat and ]Derspiration. The history of the j)atient's previous state, so far as it bore upon his present condition, Avas simjjly this. The boy had suf- fered acute rheumatism a year and a half ago, and from that LECT. XIX.] .SECOX])AK'Y INFLAMMA'JIOX.S. 251 time lie had never been free iiom palpitation and uneasiness in the region of the heart, -which he had nut experienced before. The progress of his symptoms during the brief period whicli interwncd between his admission and his death, and their trt^at- ment, it Avill be enough to state succinctly. Six leeches were applied to the region of the heart, and three grains of calomel, and a (piarter of a grain of opium, ordered to be given every six hours. He was visited at 8 o'clock r.^r. on the same day, and found dozing. He had been delirious in the course of the afternoon, but had derived some relief from the leeches, and was now quite collected. The next clay, the bowels suffering irritation, the dose of calomel was reduced from three grains to one, and a drachm of strong mercurial ointment ordered to be rubbed in night and morning : after forty-eiglit hours from the time of his admis- sion a great change had taken place ; the pain and swelling of the hand had ceased entirely ; the fever was almost gone. There had been two nights of sleej) and two days of quietude : even the pain referable to the proecordial region was uncom- plained of, until it was provoked by pressure, by deep inspiration, or by lying on the right side. Then the pain was there still. It may be remarked, that the murmur which on our first examination was heaid at the cartilages of the third and fourth ribs, was never afterwards heard either there or any where else. Thus it coidd not be denied that the active symptoms of the disease were abated, and the disease itself was probably brought to a pause : but there was no sign of rallying withal. The air passed uninterruptedly through both lungs, still the respirations were 64 in a minute. The heart was almost without pain : still it beat tumnltuously, and 150 strokes in a minute. It is a bad omen when disease declines, and jxt is followed by no token of returning health ; there is then a fearful expectation of what may come next. Every function of heart, and brain, and blood- "sessel, and nerve, was ebbing and running down, but death not yet in sight, though surely nigh at hand. On the morrow, the 19th, the third day from his admission, at 11 A.M., he was found with features collapsed, and lips blue, imd forehead covered with perspiration, and coughing up a 252 CLINICAL MEDICINE. [leCT. XIX. scanty mucus, tinged with blood. Respiration 60, and unequal ;. •pulse 164, and small as a thread ; yet the heart and the carotids bounding vehemently ; the praecordial region quite free from pain. We tried to make an auscultation of the heart, and esjiecially of the lungs, but he could not bear it, and we desisted. At 2 P.M. countenance was more dusky, and lips more blue, and respiration more distressed. At 6 p.m. hands and feet cold, respirations 72, pulse countless ; yet the impulse of the heart was still great : he was still rational, and free from pain. At 8 P.M. he shrieked out from sudden severe pain, as from spasm, and in five minutes he died. On examination after death, the cavity of each pleura was found to contain four ounces of serum, while the membrane itself appeared healthy. Both lungs were gorged with blood, and their lower lobes were becoming hcpatised, and loose of texture, and yielding to the pressure of the fingers. The heart occupied an unusually large space in front of the chest. There was no trace of disease on the pericardium exteriorly ; but being laid open, it disclosed the distinct results of two inflammations occurring at distant periods ; viz. certain spaces of such close and intimate adhesion, that its separation was impossible with- out either tearing the heart or tearing the membrane, and certain spaces intervening between these of a loose adhesion, by means of soft flocculent lymph, largely accimiulated upon its opposite surfaces, and reaching from one to the other; this lymph was mixed with serum and blood, from which it had taken a stain of red. The muscular substance of the heart bore not any mark of disease, neither did the internal lining, or the valves.— (M. 19, 130.) Cases need not be further multiplied (the two which have been related are quite enough) to show the uncertain diagnosis and possible fatality of inflammation, renewed by a fresh attack of rheumatism in the endocardium or the pericardium of a heart which has been left unsound after a former attack. But the inflammation does not require an attack of rheu- matism to renew it ; it will be enough just to give the outline of a case in proof of this ; a case where endocarditis and peri- carditis arose, during the progress of acute pleuro-pneumonia, in a heart which had its pericardium already adherent. Here the mixture of equivocal circumstances, and the complexity of ■LECT. XIX.] SECONDARY INFLAMMATIONS. 253 the disease threw u veil over one half of it at least, and the patient was believed to have suffered, and to have died of pleuro-pneumonia, and pleuro-pneumonia only, nntil dissection •disclosed the traces of recent inflannnation both without and within the heart. Elizabeth Broom, aged 18, was admitted into the hospital May 30, 1(S36. Fever and frequent pulse, and dyspnoea, and -cough, and glutinous rust-coloured sputa, at once gave intima- tion of pneumonia, and auscultation presently confirmed the same; for a bronchial respiration and a bronchial voice pro- ceeded from the greater part of both lungs behind, with here and there some small crepitation, while all below each scapula was dull to percussion : moreover, auscultation found, coincident with the systole of the heart, and pervading the proecordlal region, and conveyed along the aorta and carotids a distinct endocardial murmur. A fortnight ago, after exposure to cold, she had been seized with a severe rigor, followed by heat and dyspnoea, and pain in the side ; whereupon she had applied to a dispensary, and was largely bled, and leeched, and blistered : thus some immediate relief was obtained. But the disease, which Avas onl}^ checked, afterwards proceeded ; and now, after the lapse of a fortnight, it was beyond the reach of a remedy. The poor girl was evi- dently sinking, and had only come into the hospital to die, — to die of the double pneumonia, as was thought, and nothing else ; and surely it was quite enough to kill her. But what meant the endocardial murmur found ever}' where in the prajcordial region, and conveyed through the arteries ? It was too prominent a symptom to escape our notice, and it became our aim to make out what it really meant. Now these facts were pretty clearly ascertained, — that two years ago the patient had had acute rheumatism, and that ever afterwards she had suffered palpitation and frequent uneasiness in the seat of the heart. Here the rheumatism two years ago, the abiding palpitation from that time forth, and the present endocardial murmur, were facts which fitted into one another as compactly as one could wish, and seemed to furnish a complete proof of permanent valvular Injury left behind by by-gone Inflammation oi the endocardium. It is true that the heart was now beating with some excess 254 CLINICAL MEDICIXK. [lECI'. XIX. of impulse ; but so it liad been (wo learnt) for the last two years. It is also true that pain was referred to the left side, somewhere about the region of the heart, and that to breathe deeply in- creased it, and to lie on the left side increased it, and also brought on a sense of suifocation : but then the certain pneu- monia and the almost certain pleurisy, wore enough to account for all this. Accordingly, we bent all our care to relieve the distress of one dying of pleuro-pneumony, thinking the heart not other- wise affected than by its old A'alvular injury. In four days the patient was dead. On examination, we found just Avhat we expected in the lungs and pleura, but found nothing that wo did, and every thing that we did not, expect in the heart. On the left side the j^leura exhibited everywhere the effects of acute inflammation. One-half of it was adherent, having, by lymph from its opposite surftices, brought the entire lower lobe of the lung and the external pericardium in close union with the walls of the chest. The other half had fluid effused between its folds, which compassed and compressed the upper lobe. Of the lung itself on this side, one half, the lower, was infiltrated Avilli pus, and contained a small circumscribed abscess ; the other lialf, the upper, seemed b}^ being compressed to have escaped being inflamed. On the right there were no marks of pleurisy, no adhesion, no lymph, no fluid. The lower lobes of the lung presented a state of earlier inflammation, and the upper lobe a state of emphysema. But what of the heart ? In attempting to lay open the pericardium, we found the heart surrounded with bags of pus, whicli we could not help cutting into one after another. They Avere partitioned by close and firm intervening adhesions. The pus and fluid contents of these several bags could not have amounted altogether to less than half a pint. Within the heart, the tricuspid, the mitral, and the aortic valves presented deposits of lymph on their free edges, which admitted of being T'ubbcd ofl", leaving a rough surface in their place. The oriflces of the heart were not at all contracted, and the cavities were of their due capacity, except that the right auricle seemed some- what dilated. The liver was congested with blood and bile. (W. 21, 21.) Here, then, wore displayed within the heart the traces of LECT. XIX.] SECONDARY INFLAMMATIONS. 25-> two influmnmlious winch occuiTod at an interval of years. The firm close partial adhesions of the pericardium constituted the abiding unsoundness produced and loft by the rheumatic in- flammation two years before, and the deposits of pus which intervened between them, and the deposits of lymph upon the several valves, were produced and left b}^ acute inflammation of the pericardium and endocardium, coincident with the recent attack of pleuro-pneumon}'. -256 CLINICAL MEDICINE. [lECT. XX. LECTURE XX. -SECONDARY INFLAMMATIONS CONTINUED. CERTAINTY OF OUR KNOWLEDGE OF SEVERER AND FATAL CASES. — REASONABLE CONJECTURE OF MANY LESS SEVERE AND MORE MANAGEABLE. — INFERENCE FROM SUCCESSFUL TREATMENT. DOES IN- FLAMMATION, AS OFTEN AS IT IS RENEWED, ADD SOME- THING TO THE PERMANENT INJURY OF THE HEART ? REASONS FROM ANALOGY AVHY IT SOMETIMES DOES NOT. REASONS FROM OBSERVATION WHY IT OFTEN DOES. CASE OF INFLAMMATION MANY TIMES RENEWED IN THE COURSE OF YEARS AND ULTIMATELY FATAL. COMMENTARY UPON IT AT LARGE. The cases whicli have been related may be Idoked u^^on as giving the stamp or type of secondary inflammation of the heart. By secondary, you will recollect, is here meant inflam- mation occurring afresh in the endocardium, or in the peri- cardium, or in both, of a heart left unsound after prior inflam- mation, which had aflected one or other or both of the same structures. Take, then, this stamp or typo of the disease and examine it carefully, and you will And that in part it leaves a clear and legible impression, and in part a faint outline only. The secondary inflammation of the heart has its clinical history well made out, not so its clinical diagnosis. The conditions con- •ducing to it and giving expectation that it will occur, are plain enough. The signs denoting its actual presence are equivocal and uncertain. For the sake of illustrating this secondary inflammation of the heart, we have hitherto been dealing with its severest and its fatal instances only. For we were in search of its sure diagnostic signs ; and its severest instances were most likely to display them, if any such there were. But, finding no sure •di ignostic signs even in these, we wanted the proof which fatal LKCT. XX.] MX'(.)M>Ai;'i 1 MLA.M.MA IK »NS. 257 iiistiinccs wo\ild iilono afford iis, thut the disease, so obscurely declaring itself during life, liad a real existence. This doubt could only be set at rest by dissection after death. The reality of the disease, and its fatal tendency, and its obscure diagnosis, being all admitted, it became the more necessary to acquaint ourselves with its coincidents and accom- paniments, if perhaps by marking them, and being through them on the watch for it, and knowing when to expect it, we might catch a glimpse of it in its hiding place, and so treat it, and arrest it, and cure it. These coincidents or accompaniments are an attack of acute rheumatism, or an attack of pneumonia or pleurisy, or an attack of fever from any cause whatever. And when any one of these befals a man whose heart has been left unsound by a prior inflammation, then inflammation is apt to be renewed in it afresh. And when, imdcr such circumstances and in such a subject, the heart, which habitually palpitates and is habitually imeasy, suffers a great increase of palpitation and of pain, then its inflammation should be assumed as a fact. It is among the general truths of pathology that parts left unsound by past disease have a greater readiness to catch disease afresh, from caviscs c:dculated to conve}^ it, than parts which never were injured before. As a taper just blown out, will snatch the flame from the torch that scarcely touches it, and so rekindle itself at once. Thvis independent of our special experience, the known pathological principle would teach us upon any extraordinary vascular excitement, whether inflam- matory or febrile, to fear for the heart once inflamed and still unsound, and to watch any new symptoms belonging to it, and always to make much of them, and even to interpret them to mean inflammation, though, under ordinary circumstances, they might safely be not so regarded. After all, then, you will observe, that, for the actual pre- sence of this secondary inflammation in any case, and for our guidance in treating it, we have only the warrant of conjecture. It is most true. But there is such a thing as sober conjecture, as well as sober certainty. And diseases are treated, and cures are achieved, and lives are saved, as often under the guidance of one as the other. Such conjecture, however, is altogether 17 258 CLINICAL MEDICINE. [lECT. XX. different from the arrogant g-uess-work, wliicli lias no basis of action, and which succeeds once and fails twenty times, and knows as little why it succeeds as why it fails. The conjecture which should guide the physician, is rigor- ous, and calculating, and honest. I't acts strictly by rule and kaves nothing to chance. It does not absolutely see the thing it is in quest of, for then it would no longer be conjecture^ But, because it does not see it, it ponders all its accidents and appurtenances, and, noting well whither they point, it takes aim in the same direction, and so oftener hits the mark than misses it. And succeeding thus, it knows why it succeeds, and it can succeed again and again ui3on the same terms. Next to knowing the truth itself, is to know the direction in which it lies. And this is the peculiar praise of a sound conjecture. Now, remember, the cases of secondary inflammation of the- heart hitherto considered have been all fatal cases, all severe,, all great cases, as you might call them. But there is often a relationship in medicine between the great things and the small. And we have learnt a good practical lesson when we- have found out what the relationship is. It is often such as to require that the greater should be understood first, and pre- paratorily. For the nature of both being the same cannot be well apprehended in its miniature forms, unless it be first studied in its larger and more striking developments. Nay,. more, the smaller things being understood, require still to be handled and dealt with in continual reference to the knowledge we have of the greater. No physician trifles with inflammations of the larynx or trachea. Some of them arc of small account, just tickling the glottis, and untuning the voice ; and some of them bring great oppression, from the infinite quantity of mucus perpetually expectorated and perpetually renewed, yet for the most part they are manageable enough : and some of them harass and torment with a scanty tenacious phlegm, which stings intoler- ably the parts it rests ujDon, and so there is no end of coughing night and day, yet they, too, for the most part yield to the power of medicine at last, and are cured. But there is an inflammation of the lar^mx and trachea,, which, what with the obstruction and the spasm together that LECT. XX. J SIX'ONDAKV INFLAMMATIONS. 2-59 are iaduccd by it, shuts out air from the lungs, and sti-ang'lcs a man to death. Now this last inflanimution must be known in all its bear- ings, or our knowledge of all the rest will bo imi)orfect ; for, being of the same, or at least of a kindred nature, with it, they all eontain within them the possibility of growing uj3 to the same magnitude, and placing life in the same jeopardy. There- fore, in dealing with the least of them, with the mere tickling- vexing cough, we are to take it for what it is, and treat it for what it is, but not to forget what it may be. And so of all the rest. Now, if living phenomena alone, carefully noted and com- pared, can be trusted without the aid of morbid anatomy for fixing by a fair conjecture the reality of a disease, then second- ary inflammation of the heart has many less severe, many less intractable forms. Cases are by no means of unfrequent occurrence, running parallel with those which have been related, both in what constitutes their clinical history and their clinical diagnosis, while they are more amenable to medical treatment. Their preceding and accompanying conditions are still the same, and equally clear and definite, namely, a rheumatism, a pulmonary inflammation, or a fever ; and their signs im- mediately referable to the heart are still the same, and equally equivocal and ambiguous, namely, augmented imj)ulse and augmented pain. These are the common conditions which seem to declare the individual cases tied together into one species. But what is it that declares their differences of degree, the more or the less severe case, the great or the small, the case which is far beyond, or is fairly within, the reach of medicine ? Nothing, as far as I know, but the actual trial of medicine itself will manifest all this. I believe, that whenever the heart is re-inflamed by a fresh attack of rheumatism, there is almost always a tremendous accession of palpitation and pain. Oftentimes, however, when the palpitation and the pain have been the greatest, they have been most easily subdued. So these are no sure measure of the severit}^ of the disease, and no sure warning of its fatal result. I could relate numerous cases of one and the same species (as I believe) with those which have been already given, yet in perfect contrast with them as to this single resj)ect, namely. 260 CLINICAL MEDICINE. [lECT. XX. their readiness to admit the remedial impression of medicine. Contrasted with the few cases (for they are the few) where, on a fresh attack of rheumatism, vehement palpitation and proe- cordial anguish arise, and remedies have no effect in abating them, and complications of pleurisy or of pneumonia follow, and the whole man is rapidly subdued, and the end is death : contrasted with these are the many (for happily they are the many), where, under the like conditions, palpitation and prae- cordial anguish just as great arise, but they are readily controlled and abated by remedies, and no complications of pleurisy or pneumonia follow ; and the constitution does not profoundly suffer, and the end is recovery. By recovery I here mean, that the attack ceases, and leaves the patient in no worse a condition, as far as symptoms referable to the heart are concerned, than that in which it found him. To escape with life from a renewed attack of endocarditis or pericarditis, and not only to escape with life, but without aggra- vation of the symptoms which permanently belong to the heart, are possible and frequent events ; but they can only be ensured by discreet medical management. In such cases it is important neither to do too little nor too much. It is true there is a tremendous augmentation of distress immediately upon the accession of this secondary inflammation, but the inflammation is easily made to lose its hold (if I may so say), and the distress is soon abated. As to the kind of medical treatment, I would remark gene- rally, first, with respect to bleeding , that if you now direct this mode of depletion with the view of entireli/ stilling the violent action of the heart and arteries, you propose a false and im- possible indication of practice ; false, because this violent action is in part permanent, and has not to do with the present condi- tions of disease ; impossible, because no quantity of bleeding short of that which would kill the patient would be adequate to the purpose ; and^ secondly, with respect to mercury, that all which can now be done is commonly within the reach of other remedies, and therefore that commonly it is unnecessar3\ Leeches applied to the region of the heart will, by the im- mediate effect which they produce, test the sort of inflammation you have to deal with, and show whether any and what other remedv will be needed in counteraction of it. If they at once LECT. XX.] TIJKA'l'.MKM' ol'Sl-.COXDAlfV I NJ'I.A.M.M A'llDNS, 201 afford marked relief, tlioy thus denote both that the inflamma- tion is easily controllable, and that the}', without the aid ot any other remedy properly antiphlogistic, Avill be able to control it. And so it will turn out in the majority of cases. lUit ii" they afford no marked relief at once, or, still more, after their rejieated application, then they plainly proclaim the inflamma- tion beyond their power to cope with, and they call for the help of mercury (as at first) to withhold it from a fatal issue : but this does not often happen. In the treatment of these secondary inflammations, it must always be borne in mind that they are secondary. We must restrict our practice to the purpose of removing so much of the disease as is superadded by the present attack, and abstain from pushing cither bleeding or mercury to such an extent as we should if we proposed to play a successful after-game for the complete cure of the disease of the heart, which is impossible. But these secondary attacks of inflammation which people suffer and recover from, and suffer and recover from again and again, do they always add something to the permanent unsound- ness of the heart P I cannot tell ; but probably not always. Wliat is that which has really the nature of inflammation, yet of inflammation in its least degree ? And what is the least material injur}' which inflammation is capable of doing-' The following, perhaps, may be regarded as a specimen of both. I have often had occasion to examine the eye of an indi^'idual who suffered purulent ophthalmia many years ago. Part of the cornea is converted into a dense opaque substance^ the cicatrix of its for- mer injury, and part remains transparent. Often, from inclement weather, or from any cause operating injuriously on the general health, a painful sense of fulness is felt in the eye, and presently its small sphere of vision becomes cloudy ; and, if it be now examined, these two changes are found to take place, one after the other, within it. First, the cicatrix is seen to be fidl of minute blood-vessels, while the rest of the cornea exhibits no extraordinary vascularity, unless, perhaps, there be a single vessel running across it, and carrying its blood straight into the cicatrix. >Secondly, a little nebulous curtain is seen all along the margin of the cicatrix, as if it were falling down from it upon the transparent portion of the cornea. In a couple of days, without an}' special remedy, merely by care to avoid 262 CLINICAL MEDICINE. [lECT. XX. external cold and by abstinence from stimulating diet, the eye loses its painful sensations, and its small sphere of vision becomes again clear ; and, being then examined, both the vascularity of the cicatrix and the nebulous curtain that hung from its border have disappeared. Exactly the same malady will occur many times in the course of the year, and exactly the same processes of disease and reparation will display themselves many times in the eye and leave it just as it was before. Here, surely, are both inflamma- tion and material injury, the effect of inflammation. Yet how small are they ; small both in degree and in extent ! How easily produced, and how easily and entirely cured! But, observe, the inflammation is of a new structure, entering into the comj)osition of the unsound part, and it comes and it goes, iind docs its little temporary injury, and, after all, adds nothing to the permanent unsoundness. JN'ow, may we take this slight secondary inflammation of an unsound structure, and this slight material injury done by it, of which we can see the growth and progress, the decline and reparation in the eye ; may we take them as types representing certain secondary inflammations and their eflects within the body, which we cannot sec, but which, nevertheless, we treat as inflammation, and readily seem to cure ? In short, may we take them to represent what the unsoinid heart often suflers and recovers from, when, upon fresh attacks of acute rheumatism, it is affected in the manner described, and, being treated as if it were inflamed, is relieved from its present excess of palpitation and pain ? Unquestionably, this is a very important class of affections of the heart which we have been considering, and needing, from the very default of precise diagnostic signs, that all their other circumstances should be the more carefully examined. It is most true that neither our eyes nor ears can testify what it is we treat, or what it is we cure, but we treat and wo cure some- thing. The clinical history of the jjatient, his previous con- dition and his past diseases and all the incidents and appurte- nances of his present attack, and especially the nature of the remedies which procure his relief, are enough to show, even in default of precise diagnostic signs, that we treat and cure a secondary inflammation of the heart. liECTc XX.] RENEWAL OF SKCOXDAKV INFJ.AAI.MA'riONS. 263 But secondary inflammation of the heart often shows itself in such a manner as to constitute a class of cases intermediate between those which were noticed in the fon)ier lecture and those which liave been just described, more amenable to the treatment than the first, and less so than the last. Like the primary inflammation, it will often continue for some time af tei" the rheumatism, or whatever be the coincident malady which -seems to have reproduced it, has passed away, and still require a special treatment to withhold it from a fatal termination, and then, as in the primary inflammation, so in this after it is fairly arrested, many weeks will sometimes elapse before the patient is brought back to a state of present safety ; and then at last it will be quite evident that something has been added to the permanent unsoundness of the heart. The habitual palpitation -and i^rajcordial uneasiness will now be found greater than they were before, and having a greater amount of dyspnoea as their •constant accompaniment ; and they will all, palpitation, and pain, and dyspna?a, now show themselves capable of being -aggravated uj^on slighter and more frequent occasions, and so will place every action and movement of the bod}' under a more severe and painful restraint. When secondary inflammation has been thus a few times renewed in the heart, and the patient, though his life be saved, has reverted after each attack to a worse condition than before, it is remarkable how little it takes to light it uj) afresh. A rheumatic fever is sure to do it ; e\en a common febrile catarrh may do it ; nay, it will sometimes appear to light itself up spontaneously ; and thus with a cause or without a cause it will return, or seem to return, at short intervals of months or weeks, and the patient perhaps will at last die of an attack much less severe than many a one that has preceded it. The inflammation (I say) will return, or sce?n to return ; for now, when the palpitation and the anguish of the heart and the dyspnoea are constantly severe, we must not be too peremptory in believing that every exasperation of them to a higher degree of severity is caused by a fresh access of inflammation. Some- :times mere rest will abate them, and sometimes rest with the help of an opiate ; and all this looks very unlike inflammation, but is far from conclusive that it is not inflammation. Some- -times both rest and an opiate together will fail without the aid 264 CLINICAL MEDICINE. |_LECT. XX. of leeches, and even of leeclics more than once applied ; and all this looks vei-y like inflammation, but is far from conclusive that it is inflammation. Here, perhaps, I ought to go into the details of a score or two of cases for confirmation of what I have been saying ; but unfortunately they would need to be long details, and I dare not venture upon them. The circimistances of half a man's life may and have a bearing upon his present disease (they indeed often have upon the secondary inflammation of the heart) and, when you come to set them forth, you seem rather to be telling a story than relating a case. One such story, however, I must tell, as a specimen. It will be found to contain a good deal to the purpose, and may stand in the place of many. There was a certain j-outh, David Aikin by name, and he was fifteen years of age ; he was a poor puny lad, and first came under my care at St. Bartholomew's Hospital, when he was suffering an attack of acute rheumatism. The proper rheumatic symptoms were trifling, but there Avas great pain in the pra?cordial region. The heart beats with an excessive impidse, which was perceptible over a much larger space than natural, and each contraction of the ventricles was accompanied by a loud endocardial murmur. The boy's father said that he had never been well since his childhood. It was then that he was first ill of rheumatic fever, which aflfected his chest, and thenceforward he liad always siifiered palpitation, and shortness of breath. The palpitation, however, and dyspnaa, were now much worse than usual ; and this was the case upon every fresh attack of rheumatism which he had suffered ; and he had suffered a great number. On this occasion the proper rheumatic symptoms were soon removed, but the pra)cordial pain, and the excessive impulse of the heart were not abated, until, besides the apijlication of leeches, a few ounces of blood were taken from the arm ; and after all the impulse still remained far greater than natural, and the murmur as loud as ever ; conditions which it was in Aain to think of getting rid of altogether. And so in a few weeks he left the hospital, with the same palpitation, and the same asthma, as he called it, which he had had for years. Some weeks after he was re-admitted into the hospital, suf- fering great distress of respiration ; yet there Avas a clear LECT. XX.] ('A8K OF .SKCONDAKV IN KLAMMA'l'ION. 260 respiratory murmur, unmixed Avitli crepitation, throughout every part of the lungs. But the heart was beating most tumul- tuously, and with a loud endocardial murmur. There was now no rheumatism, and no accompanying fever. Merc quiet restored him to a state of tolerable comfort, and he again left the hospital without any change in the essential conditions of hh complaint. Some months afterAvards, happening to visit the Middlesex Hospital, I was taken by Dr. Watson to see a case of diseased heart, which he was watching with some interest, and I inmie- diately recognised poor Aikin as the subject of it. He had experienced another attack of rheumatism, which, as usual, had greatly augmented all that the heart habitually suffered. The rheumatism had now passed away, yet fever still remained, and with it a severe praccordial pain. But the heart had almost lost its endocardial murmur, and its impulse could hardly be i'elt. It fluttered and faltered, and its contractions were all too- weak to make its murmur clearly audible. He lingered a few days longer, and then died, as if from exhaustion. I was permitted to be present at the examination of the body, and these were the most important appearances which presented themselves. The cavity of the pericardium was entirely obliterated by the most close and intimate adhesion : the pericardium seemed one with the heart, no visible trace of lymph any where remaining as the medium of their union, except opposite the right auricle. And here, too, there was at first an appearance of the same intimate adhesion of the- opposite pericardial surfaces, with great augmentation of the muscular substance, but, upon a section of the auricle, what had seemed its proper muscular substance, was in fact found to be coagulable lymph of the firmest, densest texture, half an inch thick, and so deeply injected with blood as to have the appearance of muscle. Beginning from this situation we were able, not without much force, to separate the adherent pericar- dium, and to detach it entirely from the heart. It was muck thickened at every part, yet not, except opposite the right auricle, by lymph heaped upon its surface, but by interstitial deposition within its own texture. Its adherent surface, now detached, was tolerably smooth, and of a deep red colour. The muscular substance of the heart was unequally •266 CLINICAL MEDICINE. [lECT. XX. thickened, and one of its cavities only was dilated. On the right side neither its muscular substance was thicker than natural, nor its cavities of larger capacity. On the left the auricle was neither thicker nor more capacious than natural, but the ventricle was both by at least one-third. In every part of the heart, both where it was thickened and where it was not, the muscular substance was of the hardest and toughest texture, and its colour of the deepest red. The internal lining of the heart was universally of the same deep red colour, and so was the lining of the aorta. The mitral valve and the semilunar A'alve of the aorta, were a little thickened and puckered. A small quantity of bloody serum was found in both cavities of the pleura, and on both sides there was a partial and slight adhesion of the lungs to the ribs. The lungs w^ere full of bloody serum. In parts they cut as if they w'erc solid ; but still they were every w^here pervious to air, for every part floated in water. Now there is such a thing as reading disease backwards, if I may so say. And a ver}' profitable method it sometimes is. For itjading it in the ordinary way we may not have made out the matter to our perfect satisfaction, and may have great need of this retrospect to elucidate it. What I mean by reading a disease backwards is, having its results before us and trying to unravel their series and sequences, and so to interpret the time of their occurrence and to assign them a relation to past events of its clinical history ; to learn what took place last or yester- day, and had a share in the process of dissolution, and what took place earlier and had to do with antecedent attacks, and what took place earlier still, and was the rudiniental change which accompanied the first transition from health to disease. In this way disease is traced back from its end to its beginning by the prints or vestiges it leaves of itself during its progress. The changes of structure, appertaining to the heart in the case just related, Avere very numerous and complex, but their meaning was construable enough. They were all reducible to three distinct forms, those which arose last of all and at the very end of the disease, and those which took place at mid-periods, and those which came first of all and at its beginnino-. LECT. XX.] CASHOF SFX'ONDAK'V IXl"L.\M.MA'rLO\. 2G7 First, Ihci'o was tlio (loop rod 1in;2;o nt every part of tlio organ, th(^ entire saturation witli iujoctod blood of all tliat remained to it which could be called lu>allhy, and of all that was added to it by disease. And tliis xiiupicstionably denoted the closing eft'ort, the last worlc of disease within the blood- vessels, bearing simultaneously with fatal force, both upon the lungs and upon tlio heart ; and this was the immediate cause of death. Secondly', there was the great mass of hard tough lymph encasing the right auricle, and the interstitial thickening of the pericardium, and the remarkable induration of the entire muscidar substance of the heart. And these were probably the results of the several renewed attacks of inflammation, each augmenting the heart's unsoundness, by adding some- thing of the same morbid species to what there was before, depositing fibrine upon hbrine, and interlacing it more and more with the membranous and muscular textures, and so spoiling them. And, thirdly, there were the close union of the pericardium with the heart at every part, except opposite the right auricle, and the thickened and puckered mitral and aortic valves. And these were probably the results of the earliest attack of peri- carditis and endocarditis. The inflammation ceased and never afterwards returned to the endocardium. The beads of lymph were absorbed or thrown off from the valves, and where they had been the surfaces were left uneven. But this amount of injury which was done by the first inflammation was never ■afterwards augmented in the least degree. And the inflamma- tion ceased too, and probably never afterwards returned to the pericardium at the same part or after the same manner. The serum and lymph were absorbed, and there followed a close adhesion of its opposite surfaces, which nothing afterwards disturbed. All these several changes of structure found in a single heart, which we have been commenting upon, were none other than the immediate eflects of the first and of each subsequently renewed inflammation, or rather the ver}^ Avork of the inflam- matory processes themselves. But there was yet something more in the same heart, some- 268 CLINICAL MEDICINE. [lECT. XX tiling- noticeable enough but not to be particularly dwelt upon in this j)lace, the augmented c apatity and augmented bulk of the left ventricle. These were not the work of any inflam- matory process. They were no disease in themselves, but the romotei mechanical results of disease. Of such we shall speak, hereafter. LECT.XXl] UNSOilNDNHSS FKOM ENDD- AND I'l'.lilCARDITIS. 269 LECTURE XXL THE UNREPAIRED EFFECTS OF ENDOCARDITIS AND PERICARDITIS BOTH CONSTITUTE A PERMANENT UNSOUNDNESS OF THE HEART IN THEMSELVES, AND BECOME THE POSSIBLE ELEMENTS OF FURTHER UNSOUNDNESS BEYOND THEMSELVES. THE SAME MAY BE SAID OF THE I'NREPAIRED EFFECTS OF OTHEPi. DISEASES. — THIS FURTHER UNSOUNDNESS A THING DIFFERENT IN KIND. NATURAL DISTINCTION BETWEEN THE UNSOUNDNESS FROM DISEASE, AND THE UNSOUNDNESS FROM DISORGANISA- TION. SUMMARY ACCOUNT OF THE UNSOUNDNESS FROM ENDOCARDITIS ; COMPARED (bY ANTICIPATION) WITH THE UNSOUNDNESS FROM OTHER DISEASES OF THE ENDOCARDIUM. It has been already said, that when the heart is left in a state of unsoundness by past inflammation, whether of the endocar- dium, or of the pericardium, or of both, two principal conse- quences are to be expected. Either there may be a renewal of inflammation in the unrepaired structure, or in some other structure, of the same heart ; or the unrepaired structure, remaining as it was left, may become the element of further material changes in the whole organ. The first of these con- sequences has been considered alread3^ The second remains to be considered. Now this last is much the more frequent of the two. The first, i.e. the renewal of inflammation in the unsound heart, happens comparatively to few. For it is, as we have remarked, of the nature of an accident, and dependent on circumstances befalling the individual. But the further disorganisation of the heart, growing out of the elementary unsoundness left by inflammation, certainly hajjpens to the vast majority, and, if accurate measure could be taken during life, of all its degrees, would probably be found to happen almost to all. For it springs, as we have remarked, from a natural and inevitable tendency. Wherever there is unsoundness of any elementary 270 CLINICAL MEDICINE. [lECT. XXI. tissue from disease, further unsoundness is (I believe) almost sure to follow sooner or late from disorganisatioit. Different as the}^ are in tlieir nature, tliere is a link of connexion between them. The first is a chief orio^inatino: cause of the second. Therefore, in passing from one to the other, we do not violate but rather preserve the context of our subject. I know not whether these terms, im soundness from disease and unsoundness from disorganisation, be the best that could be chosen to express my meaning, but, as I shall often hereafter make use of the same, it would be well for me to state briefly what I Avish to be understood by them. Already, a good deal has been intimated respecting the unsoundness from disease, but nothing yet respecting the un- soundness from disorganisation. In distinguishing between them, we must try first to get a right notion of what each is in its own nature, and then to make good the link which connects them. Now they may be characterised generally after the following manner. In both there is a material detriment done to the natural structure of the heart. AYhen the unsoundness is from disease, the detriment is of the same kind which the same disease, be it what it may, whether inflammation or struma or cancer, would produce in every other part of the body. But where the unsoundness is from disorganisation, the detriment is of a kind proper to the heart itself, and such as never does, and never can, take place in any other organ of the body. Again the unsoundness from disease is made up of new substances which each disease produces according to its kind, and which are difierent from the natural and healthy substance, and are superadded to it or are substituted for it : or it results from a simple destruction of the natural and healthy substance. But the unsoundness from disorganisation consists in alterations of bulk and size and shape and capacity, no other causes being- engaged in bringing them about than those which are con- stantly at work within the healthy heart, viz. its own vital movements ; only they are now at work with more or with less energy than is either natural or healthy, or they are at work without their natural and healthy harmony. But what is it that [^can rouse the vital movements of the heart to a greater energy than natural, or subdue them to a less. LECT.XXl] UNSOUNDNESS FROM ENDO- AND I'llU'H AUDI TIS. 271 or can distuvl) their natural harmony? It must bo something within or without the heart amounting to a physical necessity. When it is Avithin the heart, the previous injury of some of its elementary tissues from disease is that necessity. And hence is formed the link of connexion between the unsoundness of disease and the unsoundness of disorganisation. When it is without the heart, the ailments or injuries of other organs originate the necessity, and then convey it through the va scular system or the nervous system, and. so make it felt in and by the heart. Let this serve for a brief sketch of what is meant patho- logically by the heart's unsoundness from disease, and the heart's unsouncbiess from disorganisation, and the essential dilierences which separate them. But our business is first with the unsoundness of inflamma- tion. For we are pursuing endocarditis and pericarditis to their consequences. JN'overtheless, we must follow the subject as it naturally expands itself, and be careful of handling it too ex- clusively. Inflammation, as to the manner in which it fur- nishes the element of disorganisation, illustrates the operation of every other disease which is also capable of furnishing it ; and every other disease illustrates the operation of inflamma- tion in the like respect. And for this very reason thev mnstbe considered together. Well then, has all been said that need be said of this struc- tural unsoundness of the heart in both its kinds pathologically^ and may we now proceed at once to clinical history, and clinical diagnosis and treatment ; to what these things are and whence they come and how they show themselves and what they need and what they will bear in the living man ■ Let us j^ause awhile and consider ; for if any further explanations of a general sort be needed preparatory to a just comprehension of what is to come, this is the place for them. And I believe they are needed. ' Such explanations now given will save us much time and many words and many a troublesome digression. For this structural imsoundness of the heart in both its kinds brings us to that class of its affections, before announced,* which are " secret and chronic in their growth and unalterable and irremediable in their nature." And I have already promised to beware of treating tliem too much at large. * Patre 54. 272 CLINICAL MEDICINE. [lECT. XXI. But it is the knowledge of their /in'ng forms that we espe- cially desire to be conversant with. And this knowledge is not 41 whit the less pathological, because it is pre-eminently prac- tical. Yet I cannot manage to display it as clearly as I could wish without first entering into details which are pathological in the stricter and more technical sense ; without first asking of morbid anatomy what it has to tell of the effects of inflamma- tion within the heart when they have become permanent from a failure of perfect reparation, and of its effects both permanent and cumulative from several accessions of inflammation and from several failures of perfect reparation ; and also of the effects of other disease within the heart, which is not inflamma- tory ; and further what it has to tell of alterations of size and bulk and shape and capacity in the heart. The former will include all that matenalhj belongs to unsoundness of the heart from disease in its several degrees from the least to the greatest ; the latter all that matenaJly belongs to its imsoundness from disorganisation in its several forms from the simplest to the most complex. Still I am not going to give an inventory of a whole museum, but only to choose the fittest specimens to represent the kind of thino-s with which we have to do, and the fittest to mark their reality, a reality, which now, when we are approaching those parts of our subject which we must be content to generalise, will often need to be borne in mind, that it may keep us to tangible points and withhold us from running oft into mere speculation. It has appeared that out of sixty-three cases of endocarditis, reparation was perfect in seventeen : for in them the murmur ceased entirely. And that reparation was imperfect in forty- six, for in them the murmur continued while life was safe for the present.* But it is not from these forty-six cases that I must draw my information of the nature and effects of an un- sound endocardium, but from those which I have casually met with in the course of j^ears. By the description already given of the damage which endo- carditis is capable of doing, it has been seen how great it is in some cases and how small it is in others, and consequently how much is left for reparation to effect in some and how little in others, whether the result be the restoration of the membrane * Page 88. LECT.XXl] IINSOUNDNKKS FllOM KNDO- AND l'KiM(;Al»'l)lTI.S. 27^ to perfect soundness, or only the diminution of its unsoundness to a deg-reo compatible with life. ( )ur present business is with the latter result. In looking over such records us I possess, of dissections made where death had taken place at various periods of many months or of many years after the attack which did the original detriment to the endocardium, I find that the morbid appear- ances may be reduced to a few, to opacity and thickening of the membrane, to marks of perfect and imperfect cicatrisation, and to breach of surface or solution of continuity. The opacity and thickening vary much in their extent. Some times they are confined to u single valve or to j)art of one only, to its free edge; sometimes they aft'ect more than one, genera lly two, the mitral and the aortic calves ; and they occa- sionally extend to the valves of both sides of the heart, and pervade both their proper membranous expansions and the tendinous cords proceeding from them. Further, this same opacity and thickening belong sometimes to other portions of the endocardium beside those which form the valves and their appurtenances, especially to the lining of the left ventricle nearest the aorta and to the whole lining of the left auricle. Beside such general opacity and thickening a particular valve sometimes presents a hard elevated line or ridge where it is especially thickened, or a small spot where it is indented or depressed, looking like a complete cicatrisation in one case and an incomplete cicatrisation in the other. Sometimes a valve is perforated or cribriform or it wants a portion at its edge, or a tendinous cord is snapt in two and its ends are hanging loose Avithin the cavity of the ventricle. If this be a true sketch of the heart's permanent unsound- ness derived from the imperfectly repaired efiects of endocardial inflammation, and this its different extent, and these its several forms, and these its situations in different cases, you will see that the blood must thenceforward always encounter some im- pediment in its passage through the heart. And you will see too how various must be the amount of that impediment, how in one case it must be great and in another next to nothing, and you will be prepared for the various fate of those who owe the first damage of their heart to a rheumatic endocarditis. All this is obvious enough. But belonging to the same 18 274 CLINICAL MEDICINE. [lECT. XXI. district of pathology there arc certain conditions wliicli are less obvious and which, as far as I know, have never been noticed at all, but which I desire particularly to insist upon, on account of their great practical importance. Indeed they need to be pointed out as lights and signals to steer by, when we come to contemplate, in the living man, the effects both immediate and remote of the heart's unsoundness dci-ived from endocardial in- flammation, and vfhen we are required to treat them and to give opinions about them. This then I believe to be a fact which, if not true in every instance without exception, is true in the majority, viz. that, after inflammation of the endocardium has ceased, and repara- tion has done its best, and all that is reparable is repaired, whatever remnant of unsoundness bo left, it continues ever afterwards without increase in its oicn hind. After the lapse of years the very appearance of all we find seems to testify that it has long been stationary. There is no vestige of changes recently in progress, no new growths mixed with old growths ; each cicatrix is an old cicatrix, each perforation an old perfora- tion ; all looks as if it bore the same date, and had been brought to pass simultaneously. And hereafter, when the results of clinical observation are compared with those of morbid anatomy, they will be found to testify the same thing. The unsoundness left after endocardial inflammation remains (I say) without increase in its own hind. What is thickened does not go on to be thickened more and more. What is cica- trised does not go on granulating. Perforations and breach of surface do not become larger and larger. All this I suspect could only come from a renewal of inflammation in the endo- cardium. But inflammation naturally comes to an end, and when it has once ceased, there is not, I suspect, any natural principle of growth in the things which it leaves behind enabling them to increase of themselves. And herein inflammation and its effects will be found contrasted with other diseases of the endocardium and their effects, such I mean as produce deposits of cartilage, atheroma, and bone. Here either the diseases do not naturally come to an end, or their effects have a natural power of growth within themselves. For cartilage, atheromn, and bone go on increasing indefinitely. No doubt great struc- tural damage is sometimes involved in the unsoundness which I.ECT.XXl] UNSOUNDNESS FROM lONDO- AND PERICARDITIS. 275 Tcraains after a single attack of endocarditis. But upon the ■whole it is not apt to be carried to an extreme degree. When an orifice of the heart has undergone extreme stricture, when the mitral orifice for instance has been so narrowed as not to admit the passage of a finger, I have commonly found that the clinical history of the case has not assigned its beginning to any certain period or to any known attack of inflammation ; but it has testified on the contrary that the symptoms referable to the heart arose and increased covertly and gradually, until they reached an intolerable amount. The utter detriment and '-poiling of the valve appertaining to the orifice, and causing its extreme stricture, is not the stationary remnant of unsoundness left by an attack or two of accidental inflammation, but the progressive growth of unsoundness built up by a never-ending chronic disease. Further, it has already been stated, as a very general fact, that the louder the endocardial murmur the less is the amount of valvular impediment. Now, in almost all cases where the heart's unsoundness is traceable back to an attack of rheumatic endocarditis, the murmur is apt to be peculiarly loud. In such cases then the inference would be, that the valvular impediment is not great. It is remarkable moreover that the instances which have furnished me the proof of this fact — of the louder the murmur the less the impediment — have been chiefly where the heart-affection has originated in acute rheumatism. But be it remembered, that a further mischief to the heart is always expected to follow the imperfectly repaired injury or remnant of imsoundness left by endocarditis. But it is a mis- chief different in kind, another sort of injury altogether ; it is the unsoundness of disorganisation grafted upon the unsound- ness of disease. This will be considered in its turn. 276 CLINICAL MEDICINE. fLECr. XXII LECTUHE XXII. CONSEQUENCES TO LIFE AND HEALTH FROM THE PERMANENT UNSOUNDNESS OF THE HEART REMAINING AFTER ENDOCAR- DITIS. 1. CASES IN WHICH BESIDE THE PERMANENT ENDO- CARDIAL MURMUR THERE IS NO OTHER SYMPTOM REFERABLE TO THE heart; 2. CASES IN WHICH BESIDE THE MURMUR THERE IS OCCASIONAL PALPITATION ; 3. CASES IN WHICH BESIDE THE MURMUR THERE IS CONSTANT PALPITATION. Having considered tliat form of permanent unsoundness of tlie heart, "whicli consists in the unrepaired effects of endocarditis, we are prepared to pass from the nature of the tiling itself to its living consequences. The endocardial murmur having become permanent, and denoting (as it undoubtedly does) permanent injury of some portion of the endocardium, it becomes most interesting to enquire what follows ; what detriment either immediately or in process of time results to the health and well-being of the patients. In some no detriment whatever immediately results. Together with the permanent endocardial murmur they suffer neither pain nor palpitation nor any sort of distress or embarrass- ment referable to the heart under any circumstances. Their disease is no affair of their own consciousness. The physician hears something but they feel nothing ; they believe themselves well, but the physician knows that they have an injured portion of the endocardium. Now the severest and the mildest cases of endocarditis have equally this termination. The fever, pain, and swelling of the joints, may have been excessive, and anguish and distress of the chest and palpitation and fluttering of the heart may have kept life in jeopardy for many days. But these may all pass away, and nothing remain except the endocardial murmur. Or the fever, pain, and swelling of the joints may have been barely enough to characterise the disease, and there may have been no symptom, either pain or anguish or palpitation or LECT. XXII.] im:ijmani:nt endocardial murmur. 277 fluttering, wliicli could denote that the heart had any share in it, save only tlie endocardial murmur. But this never ceases. Here then is a certain injury of the endocardium, which the heart bears patiently and unconsciously, neither feeling it nor resenting it for the present. But what in process of time is the event of such cases r* You maj^ think perhaps that my experience should be ample enough to tell you all that can be known concerning them. But indeed it does not reach so far in this matter as you might at first suppose. It is true that I have witnessed the original disease in a great multitude of individuals, and I have seen its symptoms dwindle down to the single one in question. But the vast majority of those discharged from the hospital still bearing this symptom have escaped entirely beyond my observation, and I have never seen or heard of them more. Some however have again fallen in my way, and thus I have been able to pick up certain particidars of infornuition which it may be useful for you to know. It has not unfrequently happened to me, when I have been examining patients at the hospital, to find the marks of former leech bites or the scarifications of cupping glasses upon the precordial region ; and this circumstance, and not any com- plaint of their own in this quarter, has led me to apply my car to it, and thereupon I have discovered the endocardial murmur. Inquiring when and why it was they had need of leeches or cupping to this part, I have learnt from them that it was when they had a rheumatic fever, and because at that time something was the matter with their heart. But this happened years ago. They got well, and from that day to the present they have remained without palpitation, or shortness of breath, or any inconvenience whatever referable to the heart, which they were at all conscious of. ,, In these individuals there can be no doubt that the condi- tion of the endocardium, which now gives occasion to the mur- mur, had its origin in inflammation coincident with the attack of rheumatism to which they refer. Indeed some of them I have recognised as having been my own patients, and turning to my record of their former malady I have found the fact to be just as they have stated it. They suffered acute rheumatism in the course of which the murmur arose. The rheumatism 278 CLINICAL MEDICINE. [lECT. XXIL. ceased but the murmur remained, and they finally left the hos- pital carrying with them the still audible murmur. Between the origin of the murmur dated from the attack of acute rheu- matism and the present time when it is found stiU to continue, there has been in the several cases an interval of one, two, three,. four and five years, and in the meanwhile the patients, most of whom have been engaged in occujDations needing bodily exertion, have been unconscious of aikncnt. The cases in question convey this piece of consolatory in- formation, that while there is no doubt to what disastrous results the injury of the endocardium naturally tends, it does not go on at once and of necessity to produce them, but that, between the elementary morbid process and the results which are most expected and most feared, there may be a suspense of years. For even under the unfavourable conditions which belong to a life of hard bodily labour, such permanent organic changes of the endocardium as are left by acute inflammation and denoted by the murmur may exist for five years without- the least consciousness on the part of the patient, that he has any disease of the heart. But what is the actual condition of the heart in such cases ? AVTiatever was the condition in which it was left after the original attack of acute rheumatism, the same (there is reason to believe) is its condition now. The physician then heard the murmur, and now after the lapse of years he hears the same, but discovers nothing more ; and so he has no grounds for believing that further detriment has arisen to the organisation of the heart even after the lapse of years. He knows that there is an injured portion of the endocardium but he knows nothing more. Now where the heart bears the injury of its endocardium thus patiently for years, it is fair to infer that that injury is either so small or so fortunately placed, as to ofter no sensible obstruc- tion to the passage of the blood. A little ridge on the surface of a valve, a little granule on its free edge, or a little thickening or sjiortening of a tendinous cord, may be conceived capable oi occasioning eddies and vibrations of the blood which can bo heard, without producing any hindrance of its current which can be felt. Of all those who suffer rheumatic endocarditis and recover but with some permanent detriment done to a portion of the LECT. XXII. J PEKMANENT ENDOCAKDIAL MUKMUK. 279 c^ndocardium, aiarge proportion, I suspect, full under the fore- going description. This fact then is ascertained and coutirmcd by experience, viz. that the damage done to the endocardium by rheumatic inflammation may abide for four or five years without producing any conscious detriment to the health or well-being of the patient, or (as far as we have the means of judging) any farther injury to the structure of the heart. And it is a most important and consolatory fact. But in other instances other results immediately follow. When after its departure acute rheumatism leaves the endocardial murmur behind it, which, though known only to the physician, is the sure sign of injury done to the endocardium, it leaves it attended from the be- ginning by other symptoms, which the patient is sufiiciently conscious of, and these are directly referable to the heart. They consist of palpitation, and some pain, and some dyspnoea, which are not constantly present, but only under bodily exer- tion and mental excitement. The child who has had the praicordial murmur ever since it suffered a certain rheumatic attack, is just the same child it was before, except that it cannot join in any pastime requiring rapid movement : for then its heart palpitates, it loses its breath and is obliged to sit down. Men too are just the same men they were before, only perhaps they cannot run upstairs without panting and hurry, and they constantl}" find themselves obliged to restrain their bodily efforts within certain limits, and to beware of mental excitement, for fear of palpitation and dyspna-a. These conditions too may remain for years without either augmentation or abatement. The murmur is never absent, but the palpitation and dyspnoea arc never present except as the immediate efiect of a certain amount of bodily exertion or mental excitement. Among the cases of rheumatic endocarditis whose history I have investigated, the instances have been very numerous in which I have found a space of from one to five years imme- diately succeeding the original attack exempt, according to the patient's own account, from all ailment except an occasional palpitation and dyspnoea. This exemption however has been favoured by peculiar circumstances, by a daily occupation not requiring bodily labour and free from the greater cares and 2S0 CLINICAL MEDICINE. [lECT. XXII. hardships of life. The patients have been men of sedentary professions or they have been young people, the children of parents in easy circumstances. I have lately seen a young lady thirteen years of age, whom I attended three years and a lialf ago under an attack of acute rheumatism attended by endocarditis. The symptoms during the attack referable to the heart wore completely characteristic of the disease, and carried to such extremity, as to keep life in peril for several days. It was perhajDS the severest case I ever saw recover. She did recover, however, but never lost the murmur and occasional palpitation. At present she has the appearance of perfect health. She even bears the marks of premature woman- hood. She goes to school, plays about like other girls, but cannot run so fast or so far as the rest or use bodily exertion beyond a certain amount without dyspnoea and palpitation, and some pain in the region of the heart. For all other purposes she is absolutely well. In examining the state of her heart when she is quite free from all excitement, I find no extra- ordinary impidse, either of extent or of degree. It is felt only at the apex, Neither do I find any extraordinary extent of dulness to percussion. A systolic murmur is audible every- where within the pra^cordial region, most audible at the apex, more faintly at the basis. From the basis upwards towards the right clavicle in the course of the aorta and subclavian artery it is entirely lost, towards the left clavicle aiid in the course of the pulmonary' artery it is very loud, but not at all heard in the carotids. From the apex the murmur extends far round towards the left axilla and the back. Here I presume that the rheumatic inflammation has done a pennanent injury to the endocardium on both sides of the heart, and that the mitral valve and the semilunar valve of the pulmonary artery have undergone change of structure. I have already said that I have known numerous instances of a permanent endocardial murmur, which had its origin in an attack of acute rheumatism, existing for various periods of from one to five years, without any consciousness of ailment excef»t at times of bodily and mental excitement. If the- patient's own testimony may be taken to fix the origin of his disease (and there is no reason why it should not), I have seen one instance where these conditions existed for 20 years. A •LECT.XXII.] MURMUK WITH rALPITATION AND DYSPNCEA. 281 clergyman, 39 years of ago, worn out by the cares of lils parish, pale, and thin, came to me, and veconnted a long cata- logue of nervous distresses, lie complained too of palpitation of the heart upon any great bodily exertion, or mental excite- ment, and after stimulant food. And this palpitation I thought would turii out to be nervous too ; but auscultation found the loudest endocardial murmur at the apex, and at the basis of the heart, and in the carotid arteries. I fancied there was also .a slight excess of impulse, but of this he himself was unconscious .•at the time, and said he never felt it when quiet, as he then was. Percussion discovered no unnatural extent of dulness in the proccordial region. In truth I was sure of nothing extra- ordinary iippertaining to the heart but the murmur. Now this gentleman reported that once in his life, twenty years ago, he had suffered an attack of acute rheumatism ; that his heart was said to be affected at the time, and he had reme- dies applied to it, and that from that day to this he had ever been liable to palpitation, not constant, but occasional only, and the inevitable consequence of excitement. Thus we have been contemplating two conditions which are the result of rheumatic endocarditis ; one in which there is a permanent murmur, without the least consciousness of ailment on the part of the patient under any circumstances, and with- out the least evidence furnished to the physician, from auscul- tation, of further detriment done to the heart (beyond the original injury of the endocardium) after the lapse of years. The other in which there is a permanent murmur with palpita- tion and dyspnoea which are occasional only, yet inevitable upon a certain amount of excitement, and still without the least evidence of increasing detriment to the heart, even though years had passed since the original injurj^ of the endocardium. What then is the essential difference between these two orders of cases ? It is probable that the difference rcsjiects only the degree of injury sustained by the endocardium. This is not great in either case ; but less in the hrst, whore it is •enough to produce an eddy of the blood and a vibration among its particles, and a consequent unnatural murmur, yet not enough to occasion such a sensible obstruction to its current as the heart either feels or resents ; and greater in the second, where, under ordinarv circumstances, it is still not enough for the 282 CLINICAL MEDICINE. [lECT. XXII. lieart eitlier to feel or to resent, but, wlieii an occasion of accelerated motion arises, it both feels it and struggles against it as an obstacle. There is yet another description of cases, including those who have a ijermanent murmur derived from acute rheuma- tism, and together with it a permanent palpitation. After the subsidence of the rheumatic attack, the patients may recover the aspect, and many of the feelings and functions of health ; but their heart is always found to beat with somewhat more than its natural force, and with very much more upon any considerable exertion. Now, from this palpitation, conjoined Jro'Di the fird with the permanent murmur, I do not know that we can justly infer that the heart has sustained from the Jint a detriment to its structure beyond the injured endocardium. But in such cases, Ave are apt to think that we shall not have long to wait for the authentic signs of its more extensive dis- organisation, and we are apt to look for an earlier incaj)acity and an earlier death. Yet this need not be : oven here the changes for the worse are often very slow. Life, useful and enjoyable life, may endure for years, even (as the following case will show) for twenty-two years, and then afford the prospect of enduring still. A lady thirty- six years of age, thin and pale, was brought to me by a medical man for consultation upon all the circum- stances of a very long abiding malad3\ The impulse of her heart, always excessive, was avigmented to violence upon any exertion. She suffered dj^spnoca when she moved about, but no cough, and no expectoration, except on occasion of an accidental catarrh. Her bowels were regular, and other functions were proceeding naturally. On examination of the chest, the lungs were found to admit air freely. The heart was felt beating at every part of the pra;cordial region, and an endocardial murmur accomjianying its systole was heard at the basis, and thence becoming louder and louder as it was con- veyed downwards towards the apex, and feebler as it was con- veyed upwards in the course of the aorta. It ceased abruptly before it reached the subclavians, and was inaudible in the carotids. It was loud in the left axilla, and everywhere in the back below the scapula;. Now what was the historv of this case ? At the aj>e of LECT.XXII.] MlJKMUii wmi PALPITATION AM) DVrtP\(EA. 28o- fourteen this lady had an attack of acute rheumatism, and she jicrfectly recollected the palpitation whicli she then suffered,, and the remedies Avliich were addressed to lier chest. From that time forth her chest had never been at ease. At the age of eighteen she had a second attack of acute rheumatism, but the habitual symptoms referable to the heart wore neither aggravated at the time nor rendered permanently worse after- wards. Ten years ago she had a third attack, which for the time brought upon the heart an extraordinary amount of suffering, but left it no worse than it was before. This lady married at thirty. She had had one living child and several miscarriages. She bad suffered a miscarriage nine weeks before I saw her, with considerable hemorrhage, and from that time her palpitation had been unusually severe. I enjoined perfect quiet, and recommended that her nervous system should be kept constantly under the soothing influence of paregoric and ammonia. I saw her a few weeks afterwards. She had lost her pale distressed look ; and herself and her medical attendant both declared that what she then was might be taken to represent her habitual state. All the unnatural sounds of the heart, which I had foimd before, still remained, and nearly the same excess of impulse. I considered that the mitral valve was unsound, and that the left ventricle was in a state of hyper- trophy and dilatation, and the aortic valve not altogether uninjured. Taking then the three descriptions of cases in their order, 1 believe it to be the tendency of each to pass progressively onward into the others. The endocardial murmur left by acute endocarditis may be simple and alone, and so it may remain for years, but it is ever apt to have a palpitation added to it. The palpitation accompanying the murmur may be occasional only,, and so it may continue for years ; but in the mean time, it is ever ready to become permanent. The permanent palpitation may remain for a while moderate in degree, but it is always tending to become greater and greater. Of these three con- ditions, then, the best that experience allows us to hope is, that each may remain stationary ; for their changes are never retro- grade, but always progressive and always for the worse. Each condition becomes worse as it is converted into the other, and 284 CLINICAL medicinp:. [lect. xxil tlie condition of permanent palpitation passes on to new results, jind to the final and fatal event. The nature of these results -will be considered hereafter. In the meantime, remember the important fact which clinical experience has just been brought to testifJ^ It is this — that the evil consequences to life and health arising out of the heart's permanent unsoundness left by endocarditis are often either stationary at a small amount for years, or very slow to advance and accumulate. If a reason of the fact be asked, it will be found in the stationary and unincreasing nature of the original endocardial unsoundness. LECT. X.VKI.] INSOUNDNESS l-'SJOM I'KlilCARDITIS. 28-7 LECTURE XXIII. TKUAIANENT UNSOUNDNESS FROM PEKICAKUITIS ; ITS MANY 1)!:- GREES ; SOME HARMLESS. GENERAL VIEW OF THE EFFECTS OF PERICARDITIS AND OF THEIR REPARATION. HOW ULTI- MATELY INCOMPLETE AND ENDING IN PERMANENT UNSOUND- NESS OF VARIOUS DEGREES. SOME OF THEM SPECIFIED AND COMMENTED UPON. CUMULATIA'E UNSOUNDNESS FROM SEA'ERAl . ATTACKS OF PERICARDITIS. When pericarditis has ceased and life is safe for the present, auscultatoiy signs cannot be appealed to for information resj^ect- ing- the state in which the pericardium is left, as they were after endocarditis respecting the state of the endocardium. The per- fect or imperfect reparation of the pericardium cannot bo inferred from the entire cessation or the permanent continuance of the exocardial murmur. In truth there is no such thing known (I believe) as its permanent continuance. If life go on, its cessation must follow, whether the pericardium be restored to perfect integrity of structure or not. Being perfectly restored, the healthy surfaces Avould again glide upon each other freely and without sound. Being imperfectly restored, the unhealthy surfaces A^^ould adhere and so abolish the sound which had resulted from their friction. A stop is put to the murmur in both cases, and its cessation proves nothing in either. From the description already given of the damage which pericarditis is capable of doing, its amount will be seen to vary greatly in different cases. Accordingly, reparation has much or little to do in different cases before it reaches (I will not say) perfect soimdness, but that degree of diminished unsoundness, which makes life safe for the present. It is with the last that we are now concerned. So much of the effects of pericarditis, as, after they have admitted reparation to the utmost degree of which the}' arc capable, is still found to remain permanently and unalterably^ 286 CLINICAL MEDICINE. [lECT. XXIII. this it is which in each particular case, be it more, or be it less, constitutes the unsoundness. But when reparation has done its best, how much is actually found to remain ? More or less in different cases, but something, I suspect, in all. I am disposed to take it for a fact, that whenever inflammation of the pericardium has been enough to declare itself by symptoms, the detriment done never undergoes perfect reparation ; the pericardium never regains its integrity of structure, never, in short, again becomes what it was before it was inflamed. And in as far as it falls short of it, so far, it is permanently unsoxmd ; and this may be very little, or very much. What then is the nature and what may be the degrees of the heart's permanent unsoundness derived from the partially repaired effects of pericardial inflammation, now come to be considered ? There are often found after death, where thej'- have been unsuspected and unloohed for during life, small adhesions of the pericardium, of which the heart never felt the injury, the result of some slight attack of inflammation of which it never felt the presence or the pain. They consist of long loose bands running between the heart and the pericardium, or of a few slender threads between the pulmonary artery, and the aorta. Some of these Mr. Paget never fails to discover, wherever there are white spots upon the heart, and from the coincidence of the two, he has drawn the sound conclusion that both are the effect of inflammation; inflammation however, of which there are commonly no traces in the history of men's lives,' to match these sure and authentic ones met with after their deaths. Here the unsoundness, which consists in the adhesion, is of the least possible degree. Yet unsoundness it must still be called, unfelt as it is and harmless ; for it displays the effects of a by- gone inflammation imperfectly rej^aired. But I can make no use of these cases practically. Again, there has been sometimes found after death, where, during life, nothing has given the least suspicion of its existence, one universal adhesion of the pericardium, and its cavity entirely obliterated. I have myself known a few such cases. No symptom during life has pointed to the heart and the dis- ease that immediately killed the patients has belonged to other LECT. XXIII.] lJNSOUNDNIvS.S FIIOM IM:K'ICA!v1)IT1S. 287 organs. They have however been casual cases, and I had no acquaintance with the conditions of the patient's death, prior to their fatal illness. My observation of them had only been during the last few weeks of their existence, when, if ever, a damaged organ is apt to betray the secret of its unsoundness. I Jut even then, the heart had escaped my suspicion, and after death it disclosed what I never looked for. The cavity of the })oricardium has been entirely obliterated by adhesion. Further the adhesion has been effected with the least, or with hardly any, apparent medium of adventitious substance. And, further still, the muscular structure of the heart has been neither thickened nor attenuated, nor any of its chambers unnaturally large or small. Except the complete adhesion of the pericar- dium and the obliteration of its cavity, the heart has been altogether normal and healthy, !Now these cases I can indeed turn to a practical use. I find in them the explanation how it sometimes comes to pass, that the most acute pericarditis has its termination, not merely in present safety, but also in (what, at least during life cannot bo distinguished from) perfect health, I have known a few cases, and a few others have been credibly reported to me, of individuals, Avho having suffered an unequivocal attack of peri- carditis, have, after the lapse of some months, betrayed not the least evidence of an injured heart, and who, in every feeling and function of their bodies, have been as perfectly well as ever they were. But in these cases did the pericardium recover its perfect structure, and were its surfaces everywhere ununited and freely moving iipon each other again ? I doubt whether this be possible. Or did the pericardium contract a complete and permanent adhesion to the entire obliteration of its cavity, and that by the least conceivable quantity of adventitious lymph ? I know that this is possible from the cases to which I have referred, and I know too, although it be a state of imperfect reparation or unsoundness, yet that it is compatible Avith the perfect functions of the organ, and need not lead to its further disorganisation. Take one case in illustration. Louisa Hawkins, a young married woman, twenty years of age, was admitted into St. Bartholomew's Hospital, on the 23rd of June, 1836, suffering from acute rheumatism. Almost all 288 CLINICAL MEDICINE. [lECT. XXIII, her larger joints were swelled, and red, and painful, and bad been so for tbree days ; ber left side, too, was painful, and sbe bad sbort breatbing and a drj^ eougb ; and witbal ber beart beat witb a genuine exocardial murmur. Her fever ran very liigb, and ber disease altogether was very severe. Sbe was treated by cuj)ping and leecbes, and by calomel and opium. The exocardial muimur preserved its distinctive character for five days ; and tben for five daj's it was sometimes present and sometimes absent, and varied in different postures of tbe body, and tben it went away altogether, and left the sounds of the heart perfectly healthy and natural. It took a fortnight from the patient's admission to bring ber disease to a close ; and then sbe remained three weeks longer under our observa- tion receiving"[sucb help from medicine as her weakness and her shattered nervous system required. At the end of five weeks^ she was still weak but gaining strength daily, her heart beating with unnatural frequency but without the least unnatural sound. This Avas considered to be a case of simple pericarditis, very severe in degree, but arrested by active treatment before it had gone on to produce a large accumulation of lymph. Hence severe as it was and severe as were its remedies and great as was the constitutional suffering, the actual detriment done to the heart was probably not large and the powers of reparation were not highly taxed. In the month of February, 1837, this young woman came to the hospital to paj^ a visit of gratitude to the sister of the ward. I saw her. She was the picture of health. She told me that she soon recovered her wonted strength after she left us and that she had been unconscious of the least ailment ever since, and that there was nothing in the way of bodily exertion which she could have done before her illness that she could not do now. After the most careful auscultation bestowed upon her heart by myself and others we could find no fault with it. Its contractions, sounds, and impulses w^ere rhythmical, healthy, and natural, and the pra^cordial region afibrded its due resonance to percussion. — (W. 21, 33.) This is indeed an encouraging case. Hero was no slight or covert or doubtful disease, but one having a sure living diagnosis, a manifest pericarditis, acute and perilous and depositing lymph LECT. XXII [.] UNS0UN1)M:S8 from PERTCAIv'nrTTS. 289 upon the surface of the lieait. It was treated as sucL, and its syinptoras were abolished and life was saved for the present. JVay! more, after the lapse of eight months every circumstance^ which could be taken into account, declared that health was perfectly restored, even the health of the heart, as far as the perfection of its living- functions constitutes its health. In what proportion the genuine cases of acute and lymph- depositing pericarditis, duly and seasonably treated, revert to the conditions of this case, T have no statistics to inform me. But standing alone the case gives an encouraging lesson. It is this, that wo should always keep those who have suffered the disease as long under our care and observation as possible. Even Avhcn reparation has reached the point at which life is safe, we should not yet abandon them. How much further it may go wo cannot tell ; therefore we should be ready to give to it every aid and to avert from it every hindrance. Vie are not sure that it can go so far as to leave the heart perfectly sound of structure. But wo arc sure that it can go to the extent of reducing its vmsoimdness to so small an amount as to be unfelt as a detriment to the heart's living functions. But the reparation of the injury done by pericarditis is too often neither thus really nor virtually perfect, but leaves un- soundness enough to be always felt, and enough to becojne the element of future disorganisation. The more painfully interesting and (I fear) the larger j)art of the subject remains. Of this some summary account must be given, viz. of reparation beginning and proceeding but falling short of its ultimate design, and of unsoundness diminished indeed and brought within limits compatible with life, but felt as a present injury and feared as the source of greater injur}' to come. Consider the e&cts of pericardial inflammation. They are the undue determination of blood to the membrane itself, the fluid efi'used within its cavity and the coagulable lymph ad- hering to its surface. And then consider how each of them becomes of greater amount in proportion as the inflammation is more severe and of longer duration. Yet, if life be spared after the inflammation has ceased, you may ahvays trust the powers of reparation for the entire removal of the two first, but not of the last. 19 290 CLINICAL MEDICINE. [lECT. XXIII- The removal of the undue determinatiou of blood is the first and the easiest stapre towards reparation. Vessels, which naturally contain few red g-bbules, have been distended and overloaded with them, and those, which naturally contain none at all, and are therefore invisible, have admitted them freely. All this results from something {sui generis perhaps) — some- thing done or suffered by the blood-vessels and essentially ministering to the part they have to play in the inflammation. And it all ceases when the inflammation ceases as a natural and necessary consequence without (as far as we know) any further organic process whatever. The second stage is not so easy, but yet not diflicult. It is the removal of the effused fluid. This however must be en- tirely removed before the heai-t can reach any condition which is compatible with the continuance of life, even a safe condition of permanent unsoundness. The third and last stage towards reparation is the most difficult of all, and doubtful whether it be ever completed. This is the removal of the solid lymph. Removed altogether (I suspect) it never is, and what remains of it, after reparation has done its best, constitutes the permanent unsoundness. But tlic solid and fluid products of inflammation within the pericardium bear a certain relation to each other in the process of their removal. Therefore we will take them both together in considering how it comes to pass. Inflammation having ceased but lymph still abiding upon the surface and serum within the cavity of the pericardium, the best event, now to be presumed possible, is that its opposite folds should adhere and its cavity be entirely obliterated. And this adhesion is unquestionably a prcjcess of reparation ; of ten- tative reparation if you please, but still of reparation. It does not succeed in bringing l)ack sound and healthy structure, but it does succeed in rendering the effects of the disease less in- tolerable, and less incompatible with the continuance of life, than they would have been if no such adhesion had taken place. Now adhesion between the opposite surfaces of the peri- cardium takes place in the same manner and through the same medium as between the opposite edges of a wound, and it is hindered or retarded by the same impediments. Bring the edges of a wound together and they adhere. Keep them apart. LECT. XXIII.] UNSOITNDNHSS FROM J 'KRK CARDITIS. 291 and ilioy cannot adhere, altlioug-h the lymph bo leudy formed to se)"vo lis the medium of their adhesion. And as soon as the ■opposite surfaces of the iicricardiuni, being- already coated with lymph, are fairly applied to each other, they begin to adhere. But a large quantity of serum accumulated within its cavity, and holding its surfaces at a distance from each other would preclude for the time the possibility of their union. And the (quantity of serum may be large indeed. Large however in point of fact it seldom is. It would :alm.ost seem among the characteristics of inflammation, when it falls upon the pericardium, that its solid should greatly exceed the amount of its fluid products. In our clinical diagnosis of jjericarditis, the important fact was particularly noticed, that the exocardial murmur, the sure evidence of solid matter rub- bing against solid matter, was heard early and continued to be heard in almost every case without intermission, until it finally ■ ceased altogether; and the fact too that, however soon after its final cessation the patient died, the pericardium was found beginning to adhere. Thus the fluid within the cavity seemed from first to last not enough absolutely to prevent the opposite layers of lymph from coming in contact. No sooner is this fluid, whether it be much or little, absorbed and gone, than the solid matter is left to contract adhesion, as it may and as it does, forthwith. Now this process of adhesion begins with a larger or smaller quantity of coagulable lymph according to the extent, the intensity and duration of the previous inflammation. But whether it be large or small, the quantity with which the adhesion begins is probably in all cases more than is needed to render it complete and permanent. Therefore nature seeks to preserve just so much only as is essential to her purpose, and all the rest which can only be a hindrance to its perfection, she strives to remove. But this jierfeetion which nature intends is more than nature can achieve at all times. Any adhesion, which, occurring after acute pericarditis, enables life to go on however insecurely, and the heart to per- form its functions however imperfectly, is a reparation. But the adhesion, which further guarantees the continuance of life and enables the heart to perform its functions in a manner approaching to the conditions of health, is a reparation in a 292 CLINICAL MEDICINE. [lECT. XXIIT. lilfflier sense. And to do this it must be of a certain kind and' degree. Be it however remembered, that all adhesion of the peri- cardiimi, whatever be its kind and degree, although in references- to the preceding inflammation it partakes of the nature of repa- ration, yet in comparison with original structure, and with reference to consequences, partakes of the nature of rmsound- ness. Only its character of reparation is more apparent in one case and its character of unsoundness in another. The former has been illustrated by some conspicuous instances. It is the- latter with which we have now chiefly to do. The most common appearances of disease are often the fullest of instruction, and to such I am now going to refer. When there has been only one known attack of pericarditis, occurring- long enough ago to allow as complete a reparation of the injury left behind as might be possible in each case, then the customarj-- appearances on dissection are some of the following : — 1. There may be an universal adhesion of the pericardium and a complete obliteration of its cavity effected by the least, or by hardly any, apparent medium of adventitious substance. Ilere we have an example of reparation nearly complete but not of absolute reparation ; of the least degree of permanent un- soundness but still of unsoundness. It has been shown, that these conditions may subsist without further harm to the func- tions and structure of the heart. But then it was where there had been no known previous attack of acute inflammation. Hence however, it was thought fair to conjecture that where there had been a previous inflammation and life had afterwards "•one on without the least evidence of further harm to the func- tions and structure of the heart, these same were the conditions which might have obtained. I say, " it was thought fair to conjecture" and that is all. For, although I have known a few who after simple acute pericarditis have recovered and lived apparently in perfect health, yet I have never had the opportunity of examining after death the state of the heart in any such instances. I have indeed often met with " this almost complete reparation and this least degree of unsoundness" ap- pertaining to the pericardium after death, where inflammation had been formerly suffered. But it has been accompanied with unsoundness of the endocardium also, and further disorganisa- LECT. XXIII. J TJX.SOUNDNKSS FROM rKIMCAUl >ITIS, 293 tiou ill the shape of u thickened muscular structure, uud of a dilated ventricle has been .superadded, and all have been notified by syiuptouLs during life. It is a question Nvith me then after nil, what are the consequences which naturally result to the functions and structure of the heart from simple adhesion of the pericardium. For I have not facts enough to appeal to of the sort which are required to settle it. Pericarditis indeed is common enough ; but not simple pericarditis. The original disease is oftener a complex of pericarditis and endocarditis than pericarditis alone ; and the original unsoundness a complex of the partially repaired effects of both. Hence whatever de- triment the heart is afterwards found to suffer in its functions .and organisation, it is difficult to make sure either how much is due to each, or whether the whole may not be imputed to one ; how much the thickened valve produced, and how much the adhesion of the pericardium ; or whether the thickened valve may not have been exclusively the source of all the mischief, and the adhesion of the pericardium altogether blameless from iirst to last. 2. But, instead of the adhesion of the pericardium being- universal, and the obliteration of its cavity complete, both may be partial only ; partial, however in different ways. There may be a single adhesion over a considerable space, limiting the one •cavity by so much. Or there may be many adhesions parti- tioning the one into many cavities. These partial adhesions are often very firm and close, and in their intersj^aces the surfaces of the pericardium are found lying in contact and ununited and apparently healthy. Now measuring and comparing things as the}' merely strike the eye, we see in these conditions a less amount of unsoundness, .than in a pericardium altogether adherent and having its cavity altogether obliterated. J Jut looking to consequences we must judge otherwise. These loose interspaces are prone to enter- tain inflammation afresh. After death from secondary peri- carditis the heart has been found apparently surrounded with many little separate abscesses, which have turned out to be .collections of purulent matter between the folds of the peri- .cardium, where it had here and there failed to contract adhesion .after a former inflammation. In tke radical cure of hydrocele, more is needed, that we 294 CLINICAL MEDICINE. '(_LECT. XXIIF. may make sure of it, than to draw off tlic fluid. Let it be drawn off twenty times, tliere is still a fear that it will in all proba- bility return, as long as there remains a serous cavity for it to- return to. The cavity itself must bo obliterated, and surgery designs and interferes that it shall be so. It aims to produce- throughout the entire sac just so much inflammation as shall cause to be deposited, not here and there mercl}', but on every part of its ojiposite surfaces Ijanph enough, but not more than enough, to procure their adhesion. The absolute obliteration oi the cavity of the tunica vaginalis by adhesion with the least possible quantity of adventitious matter, constitutes the radical cure of hydrocele. Here what is surgically the radical cure iu reference to one organ is the same, which medically in reference to another I have called " almost complete reparation and the least degree of unsoimdness." Whatever be the security against recurring disease in the one case must be the security in the other. 3. But it is not only the extent of the adhesion that is various^, but the quantit}' of the uniting medium also. Between a slender tissue that holds, almost invisibly, the opposite surf aces together,, and a solid substance half an inch in thickness, there is found every intermediate degree. And these extremes and several intermediate degrees arc apt to be found in the same heart, dis- playing larger and smaller measures of unsoundness at different points, and a vast aggregate of unsoundness upon tlic whole. Now this state of things may be met with at remote jieriods after some known attack of pericarditis, from which there has been no return to health, but ever afterwards a sensible hurt and hindrance to the living functions of the heart and a jniserable existence. The unsoundness is both permanently great and un- alterable for the better. Reparation has been able just to save life, and allow it to go on and nothing more. I say vmalterable for the better, but not unalterable for the worse. For here are just those conditions which involve the })cril of secondary in- flammation. Such, generally, are the forms and degrees of imi)erfect re- paration found after a single attack of pericarditis. They are in fact forms and degrees of permanent unsoundness. They are calculated to interfei-e some more and some less with the natural functions of \\\v heart, some to bear heavily and some lightly LECT. XXIII.] UNSOUNDNK.SS FROM PERICARDITIS. 295 upon a man's future woll-being, some greatly to abridge the span of life, and some still to allow its long- continuance. But there is a cuDiiilative unsoundness resulting from more than one attack of pericarditis. To the imperfectly repaired detriment done by a first inflammation may be added the detri- ment done by a second. And this too may be imperfectly repaired ; and thus, after several infiammations, each adding something to the permanent injury whicli it found, if life continue, the cumulative unsomidness may ultimately become enormous. Of this cumulative unsoundness something has already been said incidentally in a former lecture, when I gave certain cases and dissections to illustrate the clinical history and diagnosis of secondary inflammations of the heart, and in the present lecture when, describing the forms of unsoundness left by a first peri- carditis, I pointed out those which rendered the heart more apt to entertain a second. Hence it must appear, that there are cases in which after death the effects of a second or any after- attack of j)ericarditis are plainly distinguishable in the same heart from those of a first or of prior ones, the cases namelj' where from such second or after-attack the patient has recently died. But these show the beginnings only of that cumulative unsoundness, of which something yet remains to be said. I will content myself with first describing it sim])!}' as it appears when it has run on to some of its highest degrees, and after- wards add a brief commentary. The adventitious substance intermediate between the adhering folds of the pericardium has been found more than an inch in thickness, its texture sometimes laminated like the coagulum of an aneurismal sac, red or tawny near the heart, and pale or white more remote from it, sometimes of a mixed consistence, in part almost liquid and purulent and in part solid or tubercu- lous. Or the adventitious substance has been of one uniform texture, either so like muscle as to be at first mistaken for the fleshy substance of the heart itself, or so far firmer than muscle as to resemble flesh hardened in brine, either much paler than the heart, or much redder from being deeply injected with blood. This tough flesh-like substance may occup}^ a portion only of the surface of the heart or the whole of it. I have seen it opposite the right auricle, while every where else the pericardium 296 CLINICAL MEDICINE. [lECT. XXIII. has closely adhered with little intervening medium, and I have seen it enveloping the entire organ and forming roimd it (as it were) another case of muscle. And then, if (what often happens) the muscular substance of the heart itself he augmented, a strange spectacle is disclosed on dissection. There is an enormous mass displacing the lungs and leaving nothing visible in the entire front of the chest but itself. These results are very striking. But can wo interpret them truly? Can we take them and read them (as it were) back- wards, and so tell the course and clinical history of the inflam- mation or inflammations which produced them ? In all cases, from what we know or from what we learn of the patient's previous life, this one point is clear beyond a doubt, namely that the vast amount of unsoundness had its start or point of departure from an attack of pericarditis several years ago. And in many cases from what we know or what we learn, thus much more becomes certain or highly probable, namely that the original unsoundness received accessions from distinct subsequent attacks of inflammation. We seem to read thus much in the character of the morbid deposits, when there are layers of lymph upon lymph varying in colour and consistence, or when matter soft and friable intervenes between firm and tough adhesions. But in other cases, neither from what we know nor from what we learn of the history of the patient's life or the nature of what is found after death, can v/e get all the sure insight we desire into those morbid processes, which succeeding to the original pericarditis have built up the vast mass of unsoundness eventually disclosed. The original pericarditis, we are told, left beliind it precordial anguish and palj)itation, and these never afterwards ceased but became greater and greater to the last. But in the mean time it is uncertain whether there were any fresh attacks of inflammation or not. In such cases we are left to choose between two reasonable conjectures. Fresh and distinct attacks of inflammation might have arisen and brouo^ht their contingent to the oriffinal un- o bo sovmdness and yet all sure notices of them have lain concealed under the magnitude of the abiding distress. How possible this is, has been already shown when we were considering the diagnosis of secondary pericarditis. Or, without any fresh or LECT. XXIII.J UNSOUNDNESS FROM I'KKICAK'DITIS. 207 distinct attacks, the advcntitiuus texture first formed might still continue to entertain tlie inflammation which formed it, and so carry within itself the principle of its own increase. This, being- ever afterwards slowly hut ceaselessly at work, goes on to amass by interstitial deposits a greater and greater cumu- lative unsoundness. The uniform colour and consistence of the adventitious substance seem to countenance this last con- jecture. 298 CLINICAL MEDICINE. [lECT. XXiy. LECTUKE XXiy. PERMANENT r]SSOrND>"ESS OF TlIK EXDOCAKDIIM AND PERICAR- DIlJM Fl{0:\r DISEASES OF A SPECIFIC AND MALIGNANT NATURE, ESI'ECIALLY FRO^[ ANALOGOUS FORMATIONS. THEIR ANATOMICAL ( IIARACTEK. THEIR CLINICAL HISTORY. — THEIR CLINICAL DIAGNOSIS. OIR KNOWLEDGE OF THEM COMPARED AND CONTRASTED WITH OVJi KNOWLEDGE OF INFLAMMATION. Thus far vre have been considering tlie permanent unsoundness- derived to the heart from disease, and that disease inflammation, and that inflammation of the jiericardium and the endocardium ; in other words the local eflects of one or of several attacks of inflammation upon these structures when they are left imper- fectly repaired. But permanent unsoundness may be derived to the heart from disease, and that disease be of the endocardiimi or the pericardium and yet not have the nature of inflammation. The several textures which compose the heart are not exempt from those diseases which, by whatever name they are called, I'esidt in formations different from the natural structures of the body, such as tubercle, carcinoma, cephaloma, &c. But these diseases have not any special pathology resjjective to their seat within the heart, or (what is more to our jDurpose,) any distinctive history, diagnosis or treatment. Therefore it would be going out of our way to enlarge our notice of them. I would only observe of that disease with Avhich experience has made us most familiar, that it seldom afl'ects the heart. I have in a few rare instances seen the pericardium studded with scrofulous tubercles, when they have been coincident with tubercles of the same character in other parts of the bodj^ and especially in the lungs. Scrofulous disease seems to have a natural preference for one organ or structure before another. Its tubercular dej^osits are apt first to take place in a single part and then, if life continue, to involve other parts almost in a certain order. And life not unfrequently docs continue long enough to allow them to spread Li:cr.xxivjsiM:(:iFi(;r)Er()siTSiNKNi)O-Axi)rKRir:ARi)iiiM.290 beyond the pint first and chiefly and fatally affected, and to reach two or throe others. Yet tliey seldom reach the heart. But the heart is apt to derive permanent unsoundness from diseases (if they deserve the name) different from all these, and different too from inflammation. They consist of (Avhat are called) deposits of analogous tissues : analogous, that is, tO' healthy tissues, as partaking of their nature, but now having the character of disease, since they now occup}' the situations \\here in health they arc never found. Thus cartilaginous and osseous matter is found in the pericardium and the endocardium. It is not indeed either perfect cartilage or perfect bone, but it approaches to the one or the other both anatomically and chemically. Now the strict local pathology of these analogous tissues, the manner of their origin and growth and increase within the heart I must leave you to learn from other instructors. Our proper business is with their lirina history and their diagnosis, and their treatment. But some idea of their objective reality sliould be brought and kept before the mind, if we are to take any just measure of their living events and form any just expectations of the effects of remedies upon them. A few par- ticrdars therefore coucerning them require to be briefly stated. The endocardium is much more frequently the seat of these analogous formations than the pericardium. But a specimen of ossified pericardium is to be found in most museums. In the specimens I have met with, the manner in Avhich the bone has been deposited has been very peculiar : it has consti- tuted one large plate or ring, running round the heart ; or even a sort of case, which has nearly enveloped the whole organ. From this ring, or case of bone, processes sometimes are given ofi", which penetrate the substance of the heart, and reacli even to its cavities. Lai-nncc met with an instance in which this sort of bony case A\-as formed around the heart, and gave off processes, which penetrated its cavities in the manner described: and he satis- lied himself by dissection that the morbid growth was developed between the fibrous and serous layers of the pericardium, since he was able to separate it, and still leave the heart covered by the serous fold of its investing membrane. In the endocardium analogous formations are more yarious- ■-300 CLINICAL MEDICINE. [lECT. XXIV. - and more frequent. Cartilaginous depositions are often found beneath the membrane where it is single ; or between its folds where it is double, in the situation of the valves ; and thus they seem rather to belong to some structure contiguous to the membrane than to the membrane itself. Such depositions will proceed to a considerable extent, while the membrane still remains free from disease. From a valve, which has been thick, opaque, and cartilaginous, I have seen the membrane separated • on both sides, and transparent ; the opaque and cartilaginous matter being left behind. Where, in cartilaginous depositions, the lining of the heart has become puckered and uneven on its surface, and the valves shortened and altered in their shape, the membrane itself participates in the disease, and is generally incapable of being separated from the subjacent structure. But , great thickening may take place in the situation of the valves, from deposition of cartilage, without any unevenness of their surface or alteration of their shape ; and imder these circvmi- stances the membrane itself you may expect to find hitherto .exempt from disease. Osseous depositions are always, I believe, originally formed beneath, or exterior to, the membrane, both in the heart and in the arteries. There are two circumstances especially worthy of remark in this process of ossification : sometimes it is a pure . and unmixed process : bone is formed and nothing else. It is deposited in minute granules, or little brittle scales, or in plates of a larger size ; and the intermediate spaces, whether in the heart or arteries, preserve their natural and healthy appearance. At first, these granides or scales, or plates of pure bone, are covered by a delicate pellicle, Avhich is in fact the internal membrane of the heart or artery, separating them from the immediate contact of the circulating blood. But in process of time, as they increase in size, and become rough and unequal on their surface, they cause a rupture of the internal membrane, and have now nothing to separate them from the immediate contact of the blood. Sometimes ossification is a mixed i^rocess, or rather, the result of another morbid process preceding it. With the car- tilaginous depositions already described there is an admixture of bone. The quantity of bone generally bears a small propor- •i.ion to the cartilage when they both occur together, as if the LECT.XXIV] SPECIFIC DEPOSITS IN KNDD-ANDl'KRICAK'DIHM. 301 bone proceeded from the cartiluf^e, and not the cartilage i'roiu the bone. It is sometimes seen growing from the surface of thi.^ cartilage, and is sometimes deposited in its substance, and only detected by the knife. Enough has been said of these analogous formations to sho\\- that they constitute a real unsoundness of the heart. But irhcnee come they, and ichi/ come they in the living man ? Have tliey any clinical historj^ Avhich can tell us ? Assuredly tliey hare a clinical histor}^, but it is no such histor}^ as tliat which belongs to an acute endocarditis or pericarditis. They have no sudden fever, no abrupt pain or swelling of external parts, in the midst of which they declare themselves for the first time, and which fix the exact date of their origin and give intelligible - intimations of their very nature. Yet still they have a clinical history, but it is such as belongs to all clironic disease. When disease is essentially acute, the preceding circum- stances conducive to it are (so to speak) acute also. They are • often as marked and as palpable as the disease itself, and we seldom need to look far back before wo find them. Tlie pneumonia of to-day comes from exposure to cold which was bitterly felt yesterday. The fever of to-day comes from expo- sure to some known contagion or some malarious influence in the course of last week. The endocarditis and pericarditis of to-day are only what we have been expecting and fearing since our patient has been ill of acute rheumatism. But when disease is essentially chronic, the preceding circumstances conducive to it are (so to speak) chronic also. They are often covert and far-fetched and hard to imravel, and we must often look back to a man's whole life, or to tlie life of his progenitors, before we find them. Thus in a multitude of cases (for when the question is of chronic disease a single case proves nothing) where the lining membrane of the heart and arteries has been beset with cartila- ginous or atheromatous or earthy deposits, the patients have been habitual spirit drinkers for j^ears, and the most con- spicuous conditions antecedently presented by them have been the failure of many functions and the growth of structural disease in many organs, especially in those subservient ta nutrition. Again, in a multitude of cases the patients have not beea 302 CLINICAL Z^IEDICINE. [lECT. XXIV. grossly intemperate but habitually luxurious, and the ailments •chiefl}^ suffered by them beforehand have been gout and its ■concomitants. Again in a multitude of cases the patients have always lived in the way most likely to ensure health, and health they have always enjoyed until old age has arrived ; and then have appeared the authentic signs of valvular disease of the heart. But, when all these circmnstances have been noted and allowed, they only make one feel more strongly the need wc have of knowing something more. The history of diseases, as distinct from their diagnosis, is valuable in proportion as it shows what are their natural preparatives, and what are tridy their exciting and predisposing causes. Intemperate habits, and gout and the gouty constitution and its appurtenances, and old age, all deserve our notice as belonging to the history of the heart's unsoundness produced by chronic valvidar disease. But intemperate habits, and gout, and old age must include within them something more general, something common to them all, something working more ■expressly to its end, and determining the formation of cartila- ginous and osseous growths within the heart and arteries by a more direct pathological necessity. But what it is we know not. We talk sometimes of diseases v.'hich come of themselves, meaning that they come without any sure forewarning that they are coming. And yet it is probable that such diseases, which are mostly chronic, are more strictly annexed to inx'- ceding conditions, although it cannot be shown what those conditions are, than are acute diseases. A man may have acute rheumatism and yet escape inflammation of the endocardium or the pericardium. He may be exposed to malaria or to contagion, and have no fever. He may encounter a blow, or a fall, and suffer no hurt. Here the conditions which precede are plain enough, and so are the diseases which follow, when they really do follow. But the fact that they do not always follow takes them out of the category of inevitable consequences. And further, when they do follow, whether they be fevers or inflam- mations, thej'- are cured, if they be curable, irrespective of the conditions out of which they arose. Being once produced they are set free from subjection to the causes which produced them, 'LECT.XXrv] SI'KCIFIC DEPOSITS IN HNDO- AND I'KRICARDIUM. 303 and thenceforth yield obedience to influences cither inherent in themselves!, orbvong-ht to bear upon tliein from without, nence they sometimes cease spontaneously, and sometimes on the -application of rcuuvlies ; such r(nncdi(^s as operate plainly in ■counteraction of present morbid conditions, as, for instance, anodynes for present pain, salines for present fever, bleeding lor present hardness of the pulse. But with chronic diseases it is often far otherwise. While all that has preceded them has been so little rcnuirkable as to lead us to believe that they came of themselves, yet when once they have declared their existence, then everything- has seemed to show that they had their origin ;ind still ha^'c their continuance from a root much deeper than themselves. And if such diseases be curable, they are not cured by remedies counteractive of present morbid conditions, <^ither by anodynes for present pain, or by salines for present fevc]', or by bleeding- for present hardness of the pulse. There 7nay be pain enough, or fever enough, or hardness of pulse enoug-h, and these may requii'c their appropriate remedies, ^modynes and salines and bleedings, and they may yield to them. But while they yield, the diseases remain, because they are indissolnbly annexed not to those conditions which we see, but to other conditions which do not appear. Well ! then by what remedies rn-c essentially chronic diseases cured, when they are indeed curable? By remedies whose effects from day to day and from week to week are inappre- ciable, and are seen only after the lapse of years. And what are those effects which are thus tardily and g-radually brought to pass ? Indeed they can only be expressed in very general terms ; terms sufiiciently denoting their reality and the imper- fection of our knowledge concerning them. Those effects are the change of' constitutional weakness into strength ; the change of the solids and fluids of the body from pravity to healthfulness, and in the meantime the disappearance of the disease. It appears then that these analogons formations in the lining- membrane of iho heart, which occasion its permanent unsound- ness, have no such clinical history as can furnish us with any certain knowledge whence or why they come, or with any svire indications of treatment by which they can be prevented or ■cured. But being once formed, have they not a clinical diagnosis ? 304 CLINICAL MEDICINE. ["lECT. XXIV^ Indeed they have ; a diagnosis, Avhicli, in one point of view,, reveals more than could have been conceived possible of any internal disease, but which in another reveals nothing- at all. By present living symptoms we can ascertain their scat satisfactorily enough, but we cannot pierce through it into their Tiafnre. And herein they share the common condition of almost all internal chronic diseases, in which the easy and often sure- diagnosis of thci)- scat is strikingly contrasted with the dark and conjectural diagnosis of their nature. I^ow this condition, if it be indeed as general as I represent it, is surely worth enquiring about. Besides it is a condition which bars the rational treatment of all the diseases that it. embraces. And if this largo class of diseases of the hearty which has long been familiar to our knowledge anatomicall//,. still remain far beyond our reach rcmediaUy, we are fortunate,, for our own credit's sake, in being able to show that the- obstacles in the way of our art are really insurmountable. Of the signs by which physicians become acquainted with diseases in the living body, some are expressive of their nature^ and some are expressive only of the parts they occupy. The- first flow directly from their essence, and may be called essential symptoms : the second are derived from the disturbed function.^.- and sensations of particular organs, and may be called acci- dental. Tliis distinction between essential and accidental symptoms is one of great practical importance. Some diseases have both orders of symptoms most strongly marked. An acute inflammation has its essential symptomSy, which are commonly the same, in whatever j^art of the body it is found, such as general heat and general excitement of the vascular system. And these teach us that it really is an acute inflammation, and how to treat it. Moreover, it has its acci- dental symptoms, which are different according to the part it occupies, whether the heart, the limgs, or the brain, such as. palpitation in one case, impeded respiration in another, and disturbance of the senses and the intellect in a third. But these alone teach us nothing concerning the inflammation, and give us no guidance or direction in the treatment of it. Again, some diseases have no essential symptoms whatever but those only which are accidental, and which appertain entirely to the organs they occupy. A fungous excrescence, or LECT. XX 1 v] SPEC 'I VK' IJEI'OSIT.S I N EN DO- AND PElilCA ItDIUM . 305 a serofuloxis tubercle, being situated in the brain, may be accompanied by a pain in the head, an hebetude of the senses and intellect, and an impaired exercise of the voluntary muscles ; but the same symptoms have arisen from tumours of other kinds, and even from the lodgement of a foreign body, such as a musket ball, in the same situation. They have nothing to do witli the essence of the tumour in question, and profit us notliing in suggesting any method of cure. They have, in fact, no rational treatment ; and simply for this reason , because they have no essential symptoms. The symptoms which flow from the essence of the disease are present with its very beginning, and accompany the whole process of its formation; whereas the symptoms which are accidental to it do not always appear until it is already formed, and often not until it has endured for a considerable period, and reached a considerable magnitude. Further, it may be stated generally, that essential symptoms belong more especially to acute diseases, and that diseases, in proportion as they are more chronic and of (what is called) a specific character, are apt to lie concealed under symptoms which are derived less from their own nature than from the parts they occupy. With respect, then, to diseases of the heart, as far as they are declared by essential symptoms, we have an early intima- tion of their existence, a knowledge of their real nature, and a guidance in the administration of remedies for their cure ; but as far as they are suggested by accidental sj^mptoms only, our knowledge is not of their nature but of their efiects, and our treatment is not directed to their cure, but to the palliation of inconveniences which are consequent ujjon them. Between endocarditis and pericarditis, and the cartilaginous, atheromatous, and osseous transformations of its lining mem- brane there is this wide distinction, that the former are of an acute, the latter of a chronic character ; and this real difference in their nature determines the difference in the degree of knowledge we have concerning them. As morbid anatomists, we can see and describe the visible characters of both with equal precision ; but as physicians, seeking to mark the period of their origin, and to measure the rate of their j^i'ogrcss, as the indispensable conditions of adapting a remedy to their cure, — ■as physicians, we know much that is certain and useful con- 20 306 CLIlSriCAL IMEDICINE. [lECT. XXIV,. ceming one class of diseases and very little concerning the other. Endocarditis and pericarditis, by virtue of symptoms wliicli are essential, and derived from their own nature, of symptoms which are jjresent with their beginning, and accompany the act of their formation, submit themselves to medical treatment with tolerable success. They often bring the knowledge of their existence within the period which includes the possibilitv of their cure. But these analogous formations of the lining membrane hav- ing not essential but only accidental symptoms, merely discover tchere theij are, not tchat they are, or how they are to be treated. The time of their accession, and the early stages of their pro- gress, are alike unknown ; and the notice of their existence is only at length supplied when new changes of structure have arisen in the heart itself, and new disorders in the constitution at large, and both the original and all the consequent maladies- are absolutely incurable. Disorganisations of the heart, how complex soever and extensive they may be, have often their origin in the unsound- ness which remains after endocardial or pericardial inflamma- tion, or in that which results from these analogous formations. If in the former their history is capable of being traced from their commencement, and pursued throughout their course regularly and connectedly ; if in the latter, their history must be taken up at a period remote from their origin, and will always be most doubtfully and imperfectly made out. LECr.XXV.l DISIIASES OF HEA.RT's MUSCIJLA.R STRUCTURE. 301 LECTURE XXV. DISEASES OF THE HEART's MUSCULAR STRUCTURE. ACUTE INFLAM- MATION TERMINATING IX THE FORMATION OF TUS. CzVSES. EXPLANATION OF THE NATURAL DIFFICULTIES IN THE WAY OF ITS DIAGNOSIS. I MAY seem perhaps to have passed by all consideration of tlie muscular structure of the heart, as if it were altogether incap- able of disease. But I have only postponed it, thinking that its diseases might be advantageously regarded in contrast or comparison with those of other structures which have already been the objects of our inquiry. For indeed the muscular structure of the heart has its diseases ; yet many of them are during life broiight within our knowledge only in very small measures and degrees, and some of them not at all. But it is a great thing, let me tell you, to understand the imperfections of our knowledge, and so to analyse its defects, as to be made aware what parts of a subject still remain (as it were) in the shade, and need to be brought into clearer view by the light which future observation may bestow upon them. Therefore, in reckoning what information we have concerning diseases of the muscular structure of the heart, I shall be careful to point out what wo have not. By its diseases, I mean processes essentially morbid, which bring change and detriment to its elementary texture, not mere alterations of size and shape and capacit)'', leaA'ing the elementary texture otherwise unchanged and uninjured; a distinction most needful here to be borne in mind. The muscular structure of the heart is capable of acute, pervasive, pus- depositing inflammation. But this inflammation has no customary assemblage of preceding or concomitant cir- cumstances, i.e. no clinical history to tell us when to expect it, no sure diagnosis to tell us when it is present, and conse- 308 CLINICAL MEDICINE. [lECT. XXV. quently no definite indications of treatment either for prevention or cure. A boy, twelve years of age, was in perfect health on Satur- day night and dead on the following Tuesday afternoon at two o'clock. He had in the opinion of all who saw him the severest inflammation of the brain. The attack was sudden with great heat and frequency of pulse. He had delirium and convulsions and pointed to his forehead as the seat of his pain. At length he sank into a state of insensibility and died. Upon dissection not a vestige of disease was found within the cranium, but the heart was the seat of the most intense inflammation pervading both the pericardium and the muscular substance. Four or five ounces of turbid serum with flakes of coagulable lymph floating in it were found in the cavity of the pericardium, which had its internal surface covered in various situations with a thin layer of reticulated lymph. Thus far there were the evi- dences of acute inflammation of the pericardium at an early stage. There was no adhesion of the opposite surfaces ; the lymph and the serum had been eff'used together, and the serum had partially washed away the lymph as it was deposited. Further, when Ihe heart itself was divided, the muscular fibres were dark- coloured almost to blackness, loaded with blood, soft and loose of texture, easily separated and easily torn by the fingers ; and at the cut edges of both ventricles small quantities of dark-coloured pus were seen among the muscular fibres. The internal lining was of a deep red colour without any efl'usion of lymph. Here the acute inflammation of the muscular structure was evinced in a manner which had never been seen before. The softening and friability of its texture would perhaps have been enough to bespeak it inflamed, but here was an actual deposition of pus.* This was a singular specimen of disease. It happened thirty years ago. But I have never seen another like it ; and I only know of one other like it, which occurred twenty years afterwards to Mr. Salter of Poole. I will endeavour to abridge the case, taking as much care as I can to preserve its points of interest and instruction. * This case was reported by Mr. Stanley thirty years ago. I was witness of it at the time, and present at the examination after death. — Med. Chir. Trans., \o\.. vii. p. 323. LECT.XXV.] DISEASES OF HEARt's MUSCULAR STRUCTURE. 309 A man 50 years of age, by trade a glover, but formerly a dragoon, applied to Mr. Salter for advice and gave this account of himself. Six weeks previously, while walking, he was seized with pain at the lower part of the chest inclining towards the left side. It was of short duration but of extreme severity, producing faintness and cold perspiration. A week afterwards, returning from a walk of three miles, he was seized Avitli the same sort of pain with the like fearful accompaniments. And now the attacks became more frequent but varied in their degree of severity and in the occasions producing them. They sometimes arose independent of exertion or seemed to arise from the mere act of raising the arm. At length a considerable uneasiness of the left arm often attended the pain in the chest. Auscultation could find nothing wrong either in the heart or in the lungs. The symjatoms obtained some degree of relief from certain remedies addressed to the stomach and bowels, which their present disordered state seemed to call for. Six days after Mr. Salter first saw him, and seven weeks after his first attack, he was seized with his longest and severest, his last and fatal paroxysm. It continued sixty-five hours and never ceased until it killed him. Its accession was with the consciousness of coming death. His face became all at once pale and his features sharp and his expression anxious and his breathing oppressed. He could not lie down. He j)laced his hand over his sternum and said " it all lies here." The pain was now a dull heavy pain. Still the heart's action was natural, air passed freely through both lungs and the pulse beat regu- larly 80 in a minute. He was bled to 10 ounces and blistered. This was early in the niorning. In the evening his sufferings and anguish were the same in kind but vastly augmented. They were too great for him to express what he felt ; too great to allow any satisfactory exa- mination to be made of his chest. The pulse had lost in power and gained in frequency. It had reached 120. He was now ordered four grains of calomel and one grain of opium every four hours. The night was passed in indescribable distress. The next morning he was still alive ; yet the beats of his pulse were scarcely to be felt or the sounds of his heart to be heard. The surface was losing its heat and positive pain Avas less. He con- tinued however to live through that day and through the fol- 310 CLINICAL MEDICINE. [lECT. XXV. lowing night and through the next day until eleven at night, with all his extremities cold and his pulse imperceptible, and then died, his mind remaining clear to the last. Now in this case it was pretty evident that the heart was the seat of disease. Eut no experience \\'hich I possess could have enabled me to say, during the life-time of the patient, what that disease was. These were the apjjcarances upon dis- section. In the pericardium both where it was loose and where it covered the heart, especially opposite the left ventricle, there was excessive vascularity; and where it was attached to the diaphragm the excessive vascularity was mixed with ecchy- mosed spots and blotches. But there was neither serum nor lymph nor pus effused from any part of the membrane. Within aU. the cavities of the heart coagula were largely accumulated. But there was no vestige of disease at any part of the internal lining. The great centre of disease was the muscular substance uf the left ventricle. " Excepting a small portion of a few lines in thickness on either surface, the left ventricle had entirely lost its muscular colour ; it was of a lightish yellow hue but still preserving the librous character of muscle. From all the cut surfaces of the vaiious sections, which were made, could be scraped purulent matter. In some parts absorption had taken place leaving small cavities in the muscular substance, varying from the size of a pin's head to that of a small pea. These were all filled with pus." What was further found, viz. half a pint of serum in the right pleural cavity and the complete engorgement of the left lung with serO'Sanguineous fluid, might be looked upon as the result of the last day's agony. Upon a review of the whole case Mr. Salter comes to the following conclusion. It appears sound and just and embraces (I believe) the real truth of the matter. It is this ; " that a chronic inflammation of the muscular substance of the left ven- tricle of the heart constituted the primary disease and that it no doubt existed at the time the first symptoms occurred : [this supposition, if correct, explains the effect of bodily exertion, even of the most trifling kind, occasioning so much distress:] and that the accession of the violent sj'mptoms may have arisen I.ECT.XXV.] DISEASES OF heart's MUSCULAll STKUCTUKE. 311 from the inflammation then assuming an acute form and extending- to the pericardium/'^ What a lesson do these two cases contain! Watched b\' oompetent observers from first to last and from hour to hour with curious and earnest interest they baffled all reasonable calculation of what was going on during the life of the patients. j:\jid yet after death dissection disclosed the commonest and the best understood (so we think) of all diseases, inflammation 4 inflammation, which had begun and proceeded in its most ordinary manner, and which had ended in its most ordinary •event, suppuration. But it was inflammation of the muscular fiubstaiicc' of the hcarl. So it was not the natui'e of the disease that lay at the root of the mystery, but the part it occupied. For be the nature of ii disease ever so well known, prior to experience who can tell how any living organ will be affected by it ? But there was not tlien, and (as far as I know) there is not now, beyond what these two eases have taught, any experience in the world, ho^^' the living heart is afl'ected by acute suppurative inflammatioii •of its muscular substance. And what now have these two cases really taught us':" Have they left (what may serve for) a traditionary experience to future observers enabling them to discern and to treat acute inflammation of the heart's muscular substance in the living man r* Surely they have not. They have taught the possibility of su^h a disease in such a part, and nothing more. Yet do these same cases contain a lesson of a more general .and comprehensive kind. And we should do well to consider it. In showing us our defective knowledge of the disease in question, they allow us to catch a glimpse of a great patho- logical secret. They give us some intelligible notion why the most acute diseases often are, and needs must be, imperfectly ■developed in their living signs. The general vascular system and the general nervous system serve each as a glass in which we are fain to read the reflection •of diseases, when we have no direct vision of the diseases them- * Med. Chir. Trans., vol. xxii. p. 72. Mr. Salter .^ valuable paper slipuld be carefally stinlied. I Lope it has not .siilfcred injury at my bauds in the .attempt to condense it. 312 CLINICAL MEDICINK. 1 LECT. XXV, selves. Here, as in higher philosophies, we take measure of things by their shadows. • • • 1 Diseases -which are local in their seat and origin are said to have their constitutional symptoms. By this nothing more is meant than that they affect the general vascular system or the general nervous system in certain ways. Aii'ecting the vascular system they produce the phenomena of fever, cold and heat and perspiration, either of them alone or mixed, or interchangeably with one another, also strange movements and impulses of the heart and arteries, and strange acceleratings and retardings of the blood itself. Affecting the nervous system they produce new and strange sensations of infinite kinds and degrees, pain and anguish, excitement and depression, and, when they reach the nervous centres, as they often do, delirium and convulsions. From these several modes of action and suffering in the vascular system and in the nervous system we gather that por- tion of our knowledge of diseases which is most eminently practical. For, however suie an insight we may have into the essential processes which constitute diseases within any part, we cannot stir a step safely or profitably in their treatment, mitil we learn how the vascular system or how the nervous system is affected by them, provided the}'^ be of a nature to affect these systems at all. Where are the signs to be sought of acute in- flammation when it occupies an organ out of sight ? Where the signs by which we arc to make sure of its existence, to measure its force and the rate of its progress, and to apply the remedy ? Mainl}'- in the general vascular system and siib- ordinately in the nervous. Well ! but do all diseases of the same nature, which arc capable of affecting the constitution, display themselves in their constitutional symptoms at all times after the same manner and to the same perfection ? Does inflammation do so ? I think not. And herein lies one secret at least of the defectiveness of our knowdedge. Call them sympathies or what you will, by which all the- blood-^■cssels and all the nerves of the body share the actions and suficrings of a part diseased, they must have invariable relations and a constant order, if the phenomena which they display are to be constantly relied upon. Bui the mere mag- LECT, XXV.] DISKASKS OF HIOAirr's MIJ.SCIILAU STIflJCTlJJM:. '513^ nitude of the cliseust^, or the piirt it occupies, or the tcmperu- luent of the patient is ever interfering- a little with these con- stitutional syinpathies, and is ever disturbing- a little their natural relations and order ; not more however than we ean- easily make allowance for. And if tliis were all it would bo well. I3ut sometimes the mere magnitude of the disease and- sometimes the nature of the part and sometimes the tempera- ment of the patient, one or all, so utterly confound them and their relations and their order, that either they cannot tell us what they oiig-ht to tell us, or they tell us what is absolutely false. Most frequently it is from the nervous system that the whole perplexity takes its origin. The nervous sj^stem Avill run on to such an excess of sympathy as to seem to engross all living- action and suffering- and allow nothing to aj)pear in the body but what directly proceeds from itself. It will tyrannize (as it were) over the vascular system and keep it under, and forbid it to display by its appropriate sympathies those diseases, which cannot otherwise be displayed at all. I am well aware that this is not pathological language. It does not explain the processes of things, but it may serve to characterise their results. In the first of those two remarkable cases which have been related, the sympathy of the nervous sj'stem was a mixture of action and suffering but chiefly action, and so intense, so j)lenary and alone as to draw oif all show and perception of the disease from the part affected, and to appropriate them to itself. The physician could see no sign of disease in the heart and the patient had no feeling of it there. In show and in perception it was fixed in the nervous centres. The physician saw it and the patient felt it in the brain and in the spinal nuirrow and nowhere else. All was delirium and convulsion and nothing besides. In the second case the sympathy of the nervous system was in the way not of action but of suffering. There was no con- vulsion, no delirium. The intellect was clear throughout and to the last. This suffering was in the part and not out of it, but so intense and so all-subduing as to supjsress and keep down all the proper symptoms of the existing disease. For six weeks the malady consisted in short paroxysms of extreme pain 314 CLINICAI. MEDICINE. [lECT. XXV. and anguisli belonging to the heart. And when the malady was consummated at length in one long paroxysm of three days, it too was all pain and anguish, still centred in the heart and still effectually hiding the inflammation, which had been progressive for weeks and had now reached its accomplishment in suppuration. LECT. Xi¥I.] ULCEJ4ATI0N AND ANEUJaSM OF llKAliT. 315 LECTURE XXVI. -DISEASES OF THE HEARt's MUSCULAR STRUCTURE CONTINUED. CHRONIC INFLAMMATION TERMINATING IN ULCERATION. IN i'ARTIAL DILATATION. IN VOSSIHLK RUPTURE. ITS DIAGNOSIS UNATTAINED. — CASES. — THE SOFT HEART. — THE FAT HEART. INQUIRY INTO THEIR CLINICAL DIAGNOSIS AND CLINICAL HISTORY. RUPTURE OF THE FAT HEART.— C^VSES. Morbid anatomy has disclosed to iis other conditious of the heart's muscular structure with which we are familiar as results of inflammation in whatever part of the body they are found ; such as circumscribed abscesses or deposits of pus ; also idcera- tions, some having their origin and progress from the pericar- dial surface inwards, and some from the endocardial surface outwards. In the heart it has been sought to demonstrate by dissection the same forms of aneurism which afiect the arteries. And to u great extent successfully. Now there is none of them which do not involve disease of its muscular structure, disease originating within itself or imparted to it from contiguous tissues. Sometimes the aneurism has presented an appearance -as if the disease from which it resulted had belonged to the muscular structure entirely and exclusively. The endocardium iind the pericardium have come together at the dilated part, and no muscular structure has been found intervening between them. It has been destroyed by disease, and is absolutely absorbed and gone. Sometimes it has seemed as if it had begun from inflammation at a spot of the endocardium, which had softened and destroyed the subjacent muscular layers and so, proceeding by intermixtures of pus and blood, had ended in rupture. This is an acute form of aneurism. Sometimes it has seemed as if it had begun by converting the muscular substance into a semilardaceous, semiiibrous mass, and pi'oceeded hy gradually attenuating it and implicating the endocardium 316 CLINICAL MEDICINE. [lECT. XXVI^ and pericardium with it ; and so, by the impulse of the circu- lating blood, a pouch-like dilatation has arisen and perhaps- ultimate rupture. This is a chronic form of aneurism. But the subject of cardiac aneurisms, and of all the forms of disease which it embraces, is one of great pathological interest,, and must be studied in the writings of those who have handled it with the care which it deserves.* It was necessary for me thus- shortly to direct your attention to some of its prominent realities, before I could well proceed to consider the living phenomena connected with them. Now our clinical acquaintance with these diseases during life has not kept pace with the knowledge which anatomical investigation has procured us of them after death. Sometimes- they have had their beginning and their progress without awakening in the patient the least suspicion of anything wrong within the heart. He has had no consciousness of ailment or suffering, and the fatal consummation has been an awful- surprise. Sometimes they have been attended with suffering enough to alarm the patient and by sj'uiptoms enough to enable the physician to infer damage of the heart, and even to antici- pate its fatal event, but not to be sure of its nature ; such aa faltering and failure of the circulation and dyspnoea and anguish, either constant with occasional aggravations, or alto- gether occasional and in paroxysms, but, whether constant or occasional, never attended with any precise auscultatory signs. But sometimes they have had the accompaniment withal of precise auscultatory signs, and these have gone to the clear diagnosis of certain present conditions of disorganisation within the heart. But then these conditions have been no essential part of the disease. Auscultation has told of hypertrophy and general dilatation of the ventricle with certainty enough, but it has left the partial aneurismal dilatation and the circimiscribed progressive iilceration and the impending rupture entirely unsuspected. * M. Tliuinuia has piu-sued his researches into this subject with singular industry and ability. He has brought together from all quarters a multitude of interesting facts, and displayed them and commented upoa. them in the best manner. — Med. Cliir. Trans., vol. xxi. p. 187. See an admirable summary of the same sulyect by Hasse in Dr_ Swaine's translation of his Pathological Anatomy, lately published by th& Sydenham Society, p. 140. .LECT. XXVI.] ULCERATION AND ANEURISM OF IIEAirr. 317 J. R. was not far short of seventy. For the two or three last years of his life I knew him well and saw him often, but never heard him complain of any infirmity. He was an accom- plished scholar ; convivial and more than habitually cheerful ; he was even habitually joyous. This I mention to show the great probability that he really felt nothing of his fatally pro- -gressive disease. "With such a constant complexion of mind surely he could not have been a constant sufferer. On Saturday, the 7th May, 1831, he became alarmingly ill a,nd I was called to visit him. I found him seated in his chair, his covmtenance blanched and full of anguish, his breathing hurried, his skin chilly, and his pulse very frequent and very feeble. lie spoke in catches, now running on rapidly and now r. he died. I happened to be out of town at the time. All was done that could be done by Dr. Roots, who saw him during these last thirty-eight hours of his suffering and of his life. At the house of a patient, whom lie went to visit late at night, ho was attacked Avith vomiting iind diarrhoea, and passed at once into a state so full of alarm that Dr. Roots was summoned to him. That physician has described to me that he found him apjiarently dying. He was removed to his own home. And still for the rest of that nig^ht 4ind the whole of the next day and the next night he was apparently dving. He did not rally in the least degree. All 21 322 CLINICAL MEDICINE. [lECT. XXVI- ihe stimulants wlilcli were adniinistered just kept the circula- tion moving and nothing more, until on the following day he breathed his last at half-past 1 p.m. In this as in the former case the fatal attack began with' vomiting and diarrhoea. The coincidence is worth notice. The body was examined after death by Mr. Wormald, who has furnished mo with the following description of what was found. "On opening the chest, which was very cai:)acious, the peri- cardium appeared full and tight. Although no great quantity of liquor pericardii was effused, yet, the heart being large and all its cavities gorged with blood, the membrane was greatly distended. White patches on the surface of the heart gave evidence of past inilaramation, and its substance was of a brown tint and of a more flabby consistence than the other muscles of the body. The lining membrane was thickened especially nbout the base of the mitral valve, where there was a deposit of a yellow colour. The left ventricle was very capacious and its walls thicker than natural except at one circumscribed spacfv This Avas between the two large carnefc columncc. Here, at the expense of the muscular substance which had entirely dis- :).ppeared, a cavity was formed large enough to contain half a vvalnut. The thickened lining membrane was here united by lymph to the serous covering of the heart, and both together formed its external boundary. It was diaphanous, and served for the only barrier which prevented the blood flowing from the ventricle into the cavity of the pericardium. There was no laminated coagulum in the aneurismal pouch." Mr. Wormald. adds, " The liver was large and indurated, and the terminal branches of the vena cava hepatica were loaded with blood. There was moreover a slight rujjture of the peri- toneum covering the liver, which extended to one of the small hepatic ducts and to one of the branches of the vena porta© between the lobules. This served to account for some blood mixed with bile, Avhich was found in the cavity of the abdomen." Hero as in the former case rupture was only just antici])ated l)y death. And in both cases death jjrobabl}^ arose from the physical impossibility of the heart's maintaining its povrer of contraction after it had sufiered absolute loss and disconnection LECT. XXVI.] ANEUKLS.M OF HEART. 323 of its muscular substance, wliilo Its plucc was nevertheless supplied by other tissue. This partial dilatation or proper aneurism of the lieart, in which its muscular structure is especially implicated, is a form of disease by no means unfrequent, very interesting patholo- gically and always tending to a fatal event. My business has been to learn how far we have cognizance of it by living cir- cumstances ; whether it has any proper clinical history or clinical diagnosis. And not any such can I find. But existence may continue until actual rupture take place and blood escape into the cavity of the pericardium. Death is then more instantaneous. I have seen some such cases, but I have not known them until their fatal event has already arrived. It is hardly necessary to record them for the sake of telling how this that and the other person fell down dead without any previous warning. It is not the manner of death that it is pro- iitable to understand in this disease but the manner of life ; how life and the great organ of life are affected by it at its begin- ning and during its progress, and what indications they show enabling us to minister to it remedially. The two cases, which I have related, surely do not contain what we are in search of in respect of the particular disease. But the}'' contain, nevertheless, matter for reflection. They con- vey, not a clear understanding, but some conceivable notion, how life itself and the very attributes and conditions of life in different organs may interfere to prevent that perfect knowledge of diseases, which we seek from their symptoms. Take these two cases and compare them wath the other two which were given in the course of the last lecture, and see what they appear severally to denote. The first are cases of acute inflammation in the heart's muscular structure running on at once to the formation of pus. They show a disease of such force and rapidity as by its overwhelming impression upon the vascular system and the nervous S3'stem to throw all sympathy into disorder, and utterly to confound the signs by which we could judge of its existence. The second are cases of chronic inflammation of the same structure proceeding by little and little with its destructive process of ulceration. They show a disease so tardy and so gradual as to convey no perception of whut it is to the blood-vessels or to the nerves, and to awaken 324 CLINICAL MEDICINE. [lECT. XXVI. no sympathy in them, and call forth no signs from them of its existence. Its whole clinical history is comprised in its fatal event. The rupture of the heart, which has just been spoken of as the last result of ulceration, may yet occur independent of it. Still wherever it has been found, there has generally been at the same time some peculiar condition of the muscular sub- stance which might be presumed to favour it. It has been so soft and loose of texture that it could be pierced through with the weight of a probe. Or it has been converted into, or greatly intermixed with, fat. Not that a rupture has not been found where the texture of the parts has seemed to offer no natural facilities to its occurrence, as in the case related by Harvey himself, who found a lacerated aperture in the left ventricle capable of admitting the finger through which blood had escaped into the pericar- dium, the walls of the ventricle being increased in thickness and strength, while an obstacle existed at the entrance of the aorta.* Here the heart must have torn itself asunder by the simple violence of its contraction in contending against the impediment to the egress of blood from its cavity. This is an effect which would hardly be thought capable of being thus produced. But I can well conceive it possible, having seen one of the recti muscles of the abdomen torn in twain in a man, who died of tetanus. The two conditions of the heart's muscular tissue which have just been mentioned incidentally, deserve a more special notice. We have seen that rupture is sometimes foimd to take place for no other apparent reason than because the heart is soft or the heart is fat. This is a grave result and enough of itself to bespeak attention to whatever may conduce to it. But softening of the heart and its conversion into fat have other serious residts to which they lead. What is meant by softening is this, a loss of the natural firmness of the heart's muscular fibres and of their natural cohesion among themselves, whereby the organ becomes flaccid and yielding under slight pressure and is easily torn. Being separated from the body it is unable to maintain its natural shape. Instead of being round it collapses and becomes * Harveii Exercit. altera. LKCT. XXVI.] TFIE SOFTKXKI) HKART. 325 flattened. In its extreme degree of softening it 2:>resents a loose, soddened, homogeneous mass, which has lost all trace of fibrous structure. For the clinical diagnosis of the softened heart you cannot be referred to any sure signs either auscultatory or non-auscul- tatory. There are none such as taken alone would determine its existence. But there are such, as taken together with certain preparatory and conducive circumstances would make one almost sure of it ; the circumstances, I mean, which con- stitute its clinical history. Now what are they ? First there is fever. For many years I have been accustomed to consider no single symptom, arising at an advanced stage of fever, to be of more unfavourable import than an intermitting or irregular pulse. Though from his general condition I might have no such expectation, yet the state of the pulse alone had made me anticipate the patient's death. In the fever which has prevailed during the last seven or eight years in the hospitals of London,* and which has been characterised by weakness rather than strength, and by petechial eruptions, the morbid appearances after death have been of various kinds and aj)pertaining to various organs. Among other kinds there has been a remarkable softening of textures ; and among other organs, such as the liver, the spleen, &c., this softening has frequently belonged to the heart. Now, whatever share a softened liver or a softened spleen may be thought to have in determining the fate of the patient, a softened heart may be well conceived to have a greater. I have been looking over M. Louis's admirable book upon fever and iind him laying great stress upon the intermitting and irregular pulse, attesting its formidable import, declaring how few who have it recover, and stating that he has found in almost all of those who have had it and have died, a softening of the heart's muscular structure. Dr. Stokes of Dublinf has lately been directing attention to the same morbid condition of the heart among the formid- able contingencies of fever. And he has done so, with some novelty in his views of the real nature of the thing itself, with a more precise notice of its diagnostic signs and (what is most * The substance of this lecture was given in 1839 and 1840. t Dublin Medical Journal, March, 183!). 326 CLINICAL MEDICINE. [lECT. XXVI. important of all) with, tlie discovery, that these contain indica- tions which may be safely trusted to decide one of the most difficult points of practice in the manageiucnt of fever. Dr. Stokes holds this softening of the heart to he a proper and special effect of fever, and its diagnostic signs to be the impulse of the ventricle becoming almost or altogether imperceptible, and the systolic sound at the same time almost or altogether inaudible. And he considers that the impulse and the sound together being thus weakened or abolished, whatever in other respects be the patient's condition, call at once for stimulants as his only means of safety : and that his safety is insured as soon as a fairly perceptible impulse and a fairly audible sound are thiis restored to the heart. The impulse and the sound thus ceasing and thus returning are, under the circumstances, diagnostic signs as nearly perfect as can well be conceived. But there are certain chronic constitutional diseases, in which the blood becomes corrupt in quality or deficient in some essential constituent, in its red globules for instance, as in scurvy or chlorotic anaemia. A pulse deficient in povr^er and intermitting is among the characteristics of such diseases, and when death takes place, the heart is found softened. I have something further to say practically upon this subject of the softened heart which must be reserved for another place. That other condition of the heart, viz. the conversion of its muscular substance into fat, which acquires an importance from •'the serious results to which it leads, niaj' be described in a few words. The health}' heart is always more or less marked upon its surface with streaks of white, and this appearance comes from the deposition of fat in the cellular texture which unites the serous covering with the subjacent muscular structure. It is found chiefly where the venao cavoc unite to form the right auricle ; also at the base of the ventricles and along the line which marks the boundary between the two, and around the great blood-vessels as they emerge from the heart. But when fat is found in more than these situations and in more than the natural quantity, it is not so much added to the healthy substance of the heart as existing at its expense and detriment, and the muscular structure is that wliicli especially suffers. ILECT. XXVI. J THE FAFTY IIICART. 327 The muscular fibre is sometimes pale and wasted like tliat of a paralytic limb. Now the predominance of fat in the heart, whether it lie superadded to, or intermixed with, its muscular structure, may be said to constitute a form of unsoundness partaking-, in some sort, of the character of disease ; moreover, like other unsound- ness from disease, it naturally leads to unsoundness from dis- >organisation. The fat heart ends by becoming also a dilated and enfeebled heart. During the life of the patient, however, there is (as far as I know) no sure diagnosis of the fat heart, but a probable con- jecture only. And even this probable conjecture can scarcely be made while the heart is siiiipl// fat, and nothing more, but. must wait until it has I'eached that further disorganisation to which it naturally tends, namely, dilatation. But, when dilata- tion is ascertained by its appropriate signs, if valvular unsound- ness, as its cause, be excluded by the absence of endocardial murmur, and if a feeble fluttering movement of the heart bo felt at every part of the precordial region, or beyond it ; and if, moreover, the constitutional habit of the man be such as to accumulate fat in all other parts, then it may be taken almost for certain that fat is especially deposited upon the heart at the ■expense or detriment of its muscular substance. Be it always remembered, nevertheless, that our inference, however correct it may turn out, is drawn, not directly from any express diagnostic signs, but indirectl}'' from coincident circumstances. No murmur reaches the ear to tell us at once that the heart is fat. But we know that the heart is feebler and more capacious than natural. And we know that such, if life last long enough, is ultimately the condition of all fat hearts. Besides, we observe that the patient is altogetlter fat, and so we infer the probability that the heart has not escaped his constitutional peculiarity. I purposely dwell upon these points. For one principal object I have in view is to bring diseases of the heart to a living test ; to stand by the bed-side, and there see how much we know of them, and how much we coujectarc, and how, according to degrees of probability, our conjecture is made, sometimes little less than knowledge, and sometimes little more than a guess. Now we are able during life to conjecture 328 CLINICAL MEDICINE. jLECT. XXVf. a fat heart with such strength of probability that Ave ahnost know it. It has been said, that from being fat the heart becomes dilated. This is its natural tendency, and, if life last long enough, the event is inevitable. For the present, however, we will not inquire further in this direction. But there is anothei* event which is of much rarer occurrence, and may interrupt its progress to that which is more common. This is its- ruj)ture. My own knowledge of rupture of the heart is limited to a single case. I have, indeed, seen numy a specimen of its- morbid anatomy; but this is a different thing from knowing cases. And I have seen some few brought into the hospital dead or d3"ing, in whom, after death, the heart was found ruptured; but this, too, is a different thing from knowing- cases. Only in a single instance have I ever witnessed the living circumstances attendant upon a rupture of the heart, and watched the mode and process of dissolution from it. And in that instance the disease of fatness (so to speak) preceded the rujDture. To me it was full of instruction, and may be so to- others ; therefore I will relate it at large : — Pi. B. Avas in his sixty-first year. For several years he had been crippled by the effects of gout. He wheeled himself from room to room in an invalid's chair, and could walk only by the help of crutches. He had never been intemperate, and was- now abstemious ; yet his sedentary life had made him fat. I had known him for more than three years. My first acquaintance Avith him AAas AA'hile he Avas suffering one of the severest fits of gout he had cA'er experienced. From that time forth he put himself under my professional care. I visited him occasionally, and did my best to Avard off the attacks, to mitigate them Avhen they came, and to make life tolerable under his great infirmities. In truth, after I kncAV him, his fits of gout were much less frequent and much less severe than they had been before. One day I was called to visit him, in consequence of an unusual pain he had been suffering. It occujDied the entire front of the chest, and j)assed along both the clavicles to the top of the shoulders, and there ceased, without descending doAvn the arms. It Avas constant. It had already endured for LECT. XXVI. J IIUITUEK OF TUE HEART. 329- a day or two, and had become inucli greater during the last night. His family, who had watched him, and knew how naturally uncomplaining and patient he was, had already taken alarm from something in his looks, which told them that he felt more than he expressed. His pulse was neither more nor less frequent than natural. It was hard and incompressible ; but such was its ordinary character. His bowels were more torpid than usual. Not clearly seeing the nature of the present distress, I contented myself with ordering a mustard poidtice to the chest, and prescribing some cordial aperient medicine. On the next day I found that not the smallest relief of pain had been obtained. And now he described more distinctly its severity, w^hich had kept him sleepless and incapable of lying- down during- the entire night. I examined his chest. The lungs admitted air freely and equably. The respiratory mur- mur was perfect. The heart beat over a somewhat larger space, and with somewhat more force than natural^ but Avithout unnatural sound. He looked more subdued than on the pre- ceding day. But no new symptom had arisen. His complaint was still of pain, and of pain only. It looked like angina 2)ccto)-is but for its permanence. With some slight hope that it might have a relation to his gouty habit, I ordered half a drachm of vinum colchici and a drachm of paregoric to be taken immediately, and again in six hours. To my great surprise, on the following day I found him quite free from pain. He had taken the first dose of colchicum and paregoric, and then the pain began gradually to leave him. He took the second at bed-time, and passed a comfortable night. The medicine had acted upon no secretion. It seemed to have produced no sensible effect beyond the suspense of the pain, if that really was its effect ; only it had left a slight nausea. Conditionalh% in the event of the nausea first passing away, I directed him to take the same dose of colchicum and paregoric at night. The nausea did cease, and the remedy was taken. The next day he cheerfully reported that he had passed a good night, and had been and still was free from pain. But the nausea had returned. This state of things admonished me to desist from medicine altogether. The nausea prohibited the further use of colchicum, and the total absence of pain left nothing to be done at present but to wait and to watch. 530 CLINICAL MEDICINE. [lECT. XXVI- Together with the events of this important case, let us have regard to the article of time. It was Monday when I first saw the patient, and now it was Thursday. Already, for two nights -and for a part of two days, the pain had been suspended, and it was about to be suspended for a night and a day longer ; a cir- cumstance which in the sequel will appear quite unaccoimtablc. Well ; his state was now so hopeful that my attendance on the following day seemed unnecessary. And, enjoining a total •abstinence from medicine in the meanwhile, I appointed to visit him again on Saturday. But on the next day, Friday, I was suddenly called to him. It was six P.M. I foiuid that, about an hour before, the pain had returned with far greater severity than ever. He was -deadly pale, and from the centre to the extremities of his body he was cold as marble, and streaming with perspiration ; but his pulse was of a good strength, and his heart Avas contracting regularly and forcibly, and now, for the first time (according to my observation), with a loud systolic murmur, audible in the prtccordial region, and not in the arteries. I administered a large dose of opium with a;ther and ammonia. Visiting him again in an hour or two, I found the pain unabated, and his pulse beginning to sink. I staid with him through the night, still giving at intervals opium and relihcr and ammonia, and -appljdng external warmth, but all to no purpose. Still th'.- pain did not lessen. Still he looked and he felt like a corj^se, he was so pale and so cold. At four in the morning (Saturday) the pulse finally ceased to be felt in the arteries, while yet the heart was perceived by the ear to move, but not by the hand. In tliis state ho survived seven hours longer, until, with his mind clear to the last, he died at 11 a.m. Let me add, what I shall not soon forget, that this good man endured eighteen hours of mortal agony with wonderful patience and resignation. Upon examination after death, all the interior structures of the body were found more loaded with fat than its external appearance would have led me to expect. We looked only superficially to the abdomen, where we found nothing remark- able but a vast accumulation of fat within the mesentery. Our -attention was chiefly directed to the suspected seat of disease — the chest. Here the lungs were perfectly healtliy. The heart was a good deal larger than natural as a whole, and incased LECT. XXVI.] KUITURJ: 0|- TilF. IIKAIH'. 331 in fat. It was upon its rig-lit side that tlic fat was accumulated to the greatest amount, and its muscular substance was evcry- ■s\-here very Haccid and \-cry thin, and became thinner and. thinner as you approached the apex, where it was reduced, to a mere line. Yet, thin as it was, it was quite healthy in colour, and preserved all the visible characters of muscle without any intermixture of fat. The fat was all exterior to it. The capacity of the right ventricle was notably larger than natural. Its internal lining was stained, of a dcej) red. Its orifices were free, and its valves health}'-. On its left side it was less covered, with fat. Here the ventricle was considerably dilated. The muscular substance was considerably hypertrophied. It pre- served its healthy character, both of coloilr and consistence in the external parietes ; but in the septum it was pale and soft, manifestly in consequence of fatty degeneration. In the septum, at its posterior juncture with the parietes, there was an oblique rent passing through it from ventricle to ventricle. On the side of the left ventricle it was an inch and a half in length; on the side of the right it jnst opened at a point. In truth, while we were examining the right side, the rupture passed undiscovered. The orifices of the left, as of the right ventricle, were quite free, and its valves healthy. The coronary arteries contained, some atheromatous deposits, but were quite pervious. The aorta was healthy as far as its arch. It began to be studded with atheromatous and earthy matter in its descending portion. When this case occurred to me, it brought to my recollec- tion a specimen of rupture of the septum preserved, in the museum of St. Bartholomew's. The patient from whom it was taken did not die in the hospital. I did not sec him ; but I took some pains at the time to ascertain the circumstances of his death from those who witnessed them, as w^ell as those cir- cumstances of his life which could be fairly ascribed, to the state of his heart found upon dissection ; and. the following is the record which I then made :— - A gentleman, sixty years of age, inclining to corpulence, had for several years been liable to occasional attacks of severe inflammation of the lungs, requiring copious blood-letting for their cure. In the month of February, 1829, having suffered such an attack during the previous winter, and been relieved in 332 CLINICAL MEDICINE. [lECT. XXVI. the usual manner, lie began to experience a new complaint.- This consisted of pain beneath the sternum, suddenly coming and going, attended by pain or numbness down one and some- times down both arms, and by something more than pain, an indescribable anguish, generally within the chest. The attack would seize him as he walked along the streets ; whereupon he would stop, turn into a shoj), rest a Avhile, and then proceed. The weather was foggy at the time, and to it he was willing to ascribe his new complaint. But the attacks continued to recur when there was no foggy weather to account for them. In the month of April he sulfercd two ; one on horseback, the other in bed and at night. One day, towards the end of the same month, he was sud- denly seized with this pain beneath the sternum and down both, arms. It was severe and agonizing, beyond what it had ever been before : and immediately his aspect became that of a dying- man, pale and purple about the lips ; his pulse very frequent, and hardly perceptible. In this condition, by the help of stimulants, he was still kept alive three days. The state of the heart, as it was found after death, is thus described in the catalogue of the museum : " The cavity of the right auricle is larger than natural, and its membranous lining- is thick and opaque. The tricusj^id valve is thickened, and its- lining opaque. The aortic valves are a little thickened, and there is a soft matter deposited beneath the lining of the aorta just above the valves. The coronary arteries arc thickened^ and there is bony matter deposited between their coats. A rupture of the septum dividing the ventricles has taken place near its union Avith the posterior wall of the heart, by which a free communication is made between the two ventricles. On the side of the left ventricle the opening is about two inches in length, and of a semi-lunar form. On the side of the right the opening is much smaller and rounded." From the description which I have quoted, it does not appear that the septum had undergone any morbid degenera- tion, which could be thought to give it a greater liability tO' rupture than any other part of the heart's muscular structure. But such degeneration was so remarkable in the case which had fallen under my own observation, that I could not help desiring a more accurate examination of the preparation at St. Bar- LECT. XXVI.] RUPTURE OF THE HEART. 333 tliolomcw's, if lifter the lapse of soveuteeii years it were indeed possible. Mr. Paget and Dr. Orinerod undertook it for me, with the aid of the microscope, and have obligingly communicated to me what they were able to make out : " There was much oil swimming at the top of the jar. The texture of the heart was somew^hat soft. On the parts about the rupture were many drops of oil, and hereabout the muscular tissue was evidently disorganised, for it appeared as irregular gramdar cords, with- out any transverse strioc, which elsewhere were well-marked. But there was no distinct fatty degeneration of the muscular tfibres." It appears then that in this, as in the other case, the septum had undergone a morbid change of structure, rendering it more liable to suffer rupture. But the change was not exactly of the same kind in the two cases. 334 CLINICAL MEDICINE. [lECT. XXVII. LECTURE XXYII. rXSOXJNDNESS OF THE HEART FROM DISORGANISATION. — HYPER- TROPHY. AT ROPII Y. DILATATION. CONTRACTION. WHAT THEY ARE IN THEMSELVES, AND IN THEIR COMP.INATIONS. THEIR CLINICAL DIAGNOSIS, HOW FAR ATTAINABLE BY AUSCULTATION. THEIR CLINICAL HISTORY CONTAINED IN PRIOR DISEASES CONDUCIVE TO THEM. THESE DISEASES MAY BE I'.ITHER IN THE HEART OR IN OTHER PARTS OF THE BODY. OBSERVATIONS UPON THEIR CLINICAL HISTORY, AS CONTAINED IN PRIOR DISEASES OF THE HEART. We come now to those affections of tlie heart v/hich may be usefully classed together xmder the name of unsoundness from disorganisation. They consist in alterations of size and shape and bulk and capacity, and are the same which are commonly denoted by the terms hypertrophy, atrophy, dilatation, and contraction. And I shall continue to use the same terms. I only designate them, as a ckm, by this name of " unsoundness from disorganisation," that it may help us to keep in mind the important truth, that disease properly so called does not enter into the actual process of their formation. Disease or any unsoundness left by disease within the heart may indeed furnish their original and conducing cause. But the things themselves are still different. Adhesion of the peri- cardium and thickened valves and strictured orifices may be first the spring and then the motive, the never-ceasing and often the ever-increasing motive, of the heart's contracted or dilated cavities, of atrophy or hypertrophy of its muscular substance. And thus in the end nothing is more common than for the same heart to present a complex of imsoundness from disease, and of un?oundness from disorganisation. Still (I repeat) the things themselves arc different. And their very relation to each other, and their frequent xmion in the same subject make it tlie more necessary to remember that they are so. IJX'J'. XXYll.] JlVrEKTKOlMIV, ATROPHY, ETC. 335 It was but fit, ]iowev(^i', llmt in tlio order of our ])rococdi:ig'- ^vc should preserve the link of connection -which pathology has ])ointed out between the two ; and treat of that first Avhich ]iaturally comes first, and then of that which naturally follows. So much for the sake of arrangement. But now, when wc arc come to these latter affections, to these forms of unsoundness from disorganisation, you will find that it is with them as it is v/ith every thing in the shape of disease or disorganisation throughout the bod}', viz. that while each according to its kind lias one mode or process of formation which is peculiarly its x)wn, it may have twenty different causes capable of originating it and conducing to it. Thus there is one process of hyper- trophy and one of atrophy, one process of dilatation and one of contraction of the heart's cavities in all cases. But the cause may be prior disease of the heart itself in one case, of the aorta in another, of the lungs in a third, deformity of the chest in a fourth, and the morbid quality of the blood in a fifth. Hypertrophy and atrophy, dilatation and contraction, seem to carry with them their own meaning. What they are might almost be left to your general conceptions. Still some short from which they are derived. Hence all that has been said of IJCCT. XXVIl.] llYl'KirrROlMIV, ATKOI'HV, ETC. 341 each and every disease of the heart which we have hitherto described, of endocarditis and pericarditis and the permanent unsoundness which they leave behind, of thickenings and trans- formations of the valves and stricture of the orifices, also of inflammation and softening- and degeneration of the muscuhir substance, what was it but a long recital of the conditions })rior, preparatory or conducive to these forms of disorganisation which we arc now considering ? Thus a large part of their clinical liistory has been amply set forth already, although it was not specified as such at the time. But a largo part remains to be considered, viz. that which is found in prior disease or unsound- jiess of other parts. For the sake, however, of marking some important practical considerations, I Avish to revert shortly to the connexion between prior forms of disease or of unsoundness from disease in the heart itself, and its subsequent forms of unsoundness from dis- ihocl- was attended at the time by any real injury of its ■xirganic textures. ►Something, nevertheless, must have then occurred to make the lieart palpitate ever afterwards and ultimately lead to its organic unsoundness. But what could it be ? Can no other textures of the heart suflFer mechanical injury and even rupture ■except its lining membrane and valves ? It is mainly the nmscular structure which is involved in the change of bulk and x'hange of capacity constituting the eventual unsoundness. Maj' it not be the muscular structure which suffers the j)rimary injury ? Indeed it may be, and it probably is ; but the fact is .utterly incapable of proof. Enough has been said in the two last lectures to show how strangely covert and secret and beyond the reach of clinical observation are all the chief diseases and rinjuries which primarily affect the muscular structure. It may suffer acute inflammation and purulent deposits among its fibres ; ■it may suffer chronic inflammation and penetrating ulceration ; it may suffer a complete disruption of large extent, and yet put forth no distinctive signs of one or the other during life. That the heart's muscular structure is penetrated with pus in one •xjase, ulcerated through in another, and rent in twain in a third, are facts which are left for death to disclose. And, if its greatest diseases and its greatest injuries thus lie hid during life, are .those of smaller account, such as partial ulcerations or a strain, or any kind or degree of mechanical hurt which may be con- ceived to come from a shock, likely to make themselves more •surely known ? But these shocks of the heart, though nobody knows Avhat -they really are, yet have emergencies which need to be treated at the time of their occurrence. And treated they have often been successfully in different measures. In some life has been .saved, no small thing surel}' ! And in some, moreover, evil . consequences have been altogether prevented, and in some post- poned. I have a few more fragments of cases worth relating for the sake of what they seem to teach practically. I will tell them as shortly as they can be told. A young man between twenty and thirty, who had lived rvery hard in the Avay both of incontinence and intemperance, was seized in the midst of some vigorous pastime (I think it LECT. XXVIir.] ACCIDENTAL SHOCKS TO IIEAUT. 349- was rowing) with sudden pain of tlio lieart and excessive impulse and the sense of ai^proaehing- death. His phj'siciaii, ministering to present emergencies, bled liim largely. And the relief that followed the remedy was so marked and manifest to the feeling of the patient and so instantaneous that he was sure it saved his life. But thougli his life was saved, abiding pain and abiding palpitation still kept it in jeopardy, for they incapacitated him for exertion during many weeks, and in tin- meantime occasionally rose to the same excess and were accom- panied by the same sense of dissolution as at first, and needed, and were relieved by, the same remedy. Now, it was not until after the lapse of two or three months from the original attack that this person fell under my observa- tion. He had then returned to the business of life, but he was ill able to fulfil it. Palpitation of the heart was still a check upon all bodily exertion and all mental effort. I have now known him and seen him at intervals for more than two years, and still the palpitation remains. I find simple excess of im- pulse without any unnatural sound, but I am not certain that the heart has undergone any degree of hypertrophy. Twice or thrice during these two years the palpitation has run on to excess, and a death-like feeling has come over him. He is engaged in a profession. But whatever he does, business and pleasure, and eating and drinking, are all under the restraint of continual watchfulness for the sake of moderating the palpi- tation of his heart. What was the nature of the injury originally incurred and what is the kind of malady at present suffered in this case I cannot tell ; but whatever they be, they distinctly proceeded from a shock of the heart more than two years ago. Take another case. A young man twenty- two years of age- was with his regiment at the Cape of Good Hope. He had been extremely intemperate and incontinent in his habits for two years and more, and he had suffered occasional palpitation of the heart. One night he went to a ball, and danced till morning, and then plunged into a cold bath and appeared on parade. But he found himself brought to a stand by violent palpitation. He felt as if his heart had suffered injury, and he was incapacitated from duty from that very hour. But he had not then the death-like sensation, which is apt to come with the shock. Yet he did not escape it. For about a fort- 4350 CLINICAL MEDICINE. [lECT. XXVIII. night afterwards tlie palpitation, wliicli liad never ceased, sud- denly ran on to extreme violence, his lips turned blue, pain seized the left side and he thought himself dying. He was at once largely bled, and felt sure that the bleeding saved his life ; iind three days afterwards he was cupped with great relief. His life however was still considered to be in jeopardy for a month. When he could be safely removed he was sent to England. It was five months from the time that the heart may be supposed to have received its shock, before I saw him. He had been sixty-eight days at sea, and in England for a month. The quiet of the voyage had brought down his palpi- tation almost to nothing, and, when he reached England, he believed himself almost well. But his palpitation had returned and had been increasing for the month he had been at home, although he had been passing the life of an invalid. I found him suffering simply paljjitation. I thought the sounds of the heart loud, but otherwise quite natural. Moreover, I perceived a slight bulging of the ribs over the prascordial region, but I could not satisfy myself of any undue extent of pnrcordial dulness, and upon the whole I could not make up my mind whether there was, or was not, an}- degree of hypertrophy. This young man continued to visit me at intervals of about a fortnight for three months. He was enjoined and (I believe) he practised the greatest care to avoid every thing which could be thought capable of conveying an injurious impression to the heart either through the body or through the mind. Never- theless the heart did not cease to beat with some excess of impulse at all times, which very moderate bodily exertion and very moderate application of the mind to business were sure to increase. x\nd at the end of the three months I had more fear of hypertrophy than at the beginning. The issue of these two cases, of the one after more than two years, and of the other after nine months is still in suspense. The issue to be apprehended is progressive hyper- trophy and dilatation. In both, I consider that life was saved, and that these disastrous terminations have been thus far post- poned, and may possibly be prevented, mainly by the treat- ment fortimately employed at the time of the shock, and by the extreme care and discipline to which the patients have ever since been subjected. LECT. XXVIII.] ACCIDENTAL R]IOCK'< To irEAli'l". 351 Such trcatiucut and such care and disciph'no arc sometimes successful in the largest sense, as the following case will show. A friend of mine, then two or tliree and twenty years of age, was dinino- at some distance from home when a messensrer €ame to tell him that his father's house was on fire. Oft' he set as fast as he could. And running down Oxford Street he came in fearful collision with a man who was running in equal haste the other way. Down they both fell. My friend recovered himself. What became of his antagonist he never knew. He himself crawled home with some difficulty. Fur- tlier than this I am not informed what was the immediate ofl'cct of the shock. But from that time he was seriously ill for many months. ITis symptoms were altogether referable to the heart, and consisted of excessive impulse and pain. He w^as attended by the late Dr. Baillie, who bled him largely. The remedy must be considered to bespeak the nature of the ■emergency, and the belief of some serious injury or disease sustained by the heart. After the lapse of many months he was allowed to return to the business of life. He had then lost his constmt palpitation. But for a few years it was wont to return painfully upon occasions of excitement. At length ho lost it altogether ; and lived five and twenty years after the shock and the perilous illness, ^^■hich followed it, active!}' engaged in a laborious profession. Let me add a notice of two more cases w' hich occurred when I was a student at the hospital. A man passing through Spa Fields one night was unmercifuUj'- beaten and plundered, and thrown into a ditch and left to die. Die, however, he did not, but lay there he knew not how long ; for he was insensible. The next day he was found and taken home. He was disabled by the bruises he had received, and by palpitation of the heart and dyspnoea which he had never complained of before, and was never again able to return to his ordinary occupation. After some months he was admitted into St. Bartholomew's, dropsical, and bearing all the symptoms which denote hyper- trophy and dilatation of the heart. He soon died, and his heart was found of a size which was almost incredible. All its muscular substance was enormously amplified, and all its cavities enormously dilated, its pericardium and lining mem- brane and valves free from disease. ^Nearly about the same time a poor fellow died in St. Bar- 352 CLINICAL MEDICINE. [leCT. XXVIII, tliolomew's, who siiflFerecl the same sj-mptonis during life, namely, dropsy and excessive palpitation and dyspnoea, and in whom were found the same conditions of the heart both in what it did, and what it did not, display of unsoundness after death,, namely, hypertrophy of the muscular substance and dilatation of the cavities, with the pericardium and the internal lining- perfectly healthy. And this man ascribed his mortal complaint to a paroxysm of anger, and referred its origin distinctly to a particular occasion. lie was naturally irascible ; and one day his- wife having offended him in a transport of rage he seized a knife, and was just plunging it into his OAvn throat, vfhen the poor woman rushed upon him, disarmed him, and disappointed his purpose. Some neighbours came in and secured him imtil his rage had burnt itself out. But from that day he had always been sensible of a palpitation of the heart, which had o-radually increased until it incapacitated him for work. Then he became dropsical, was admitted into the hospital and soon died. All was the work of not many months. But is it quite certain in these cases that the hypertrophy and dilatation reallj- came from a material injury done to the- heart at the time of the shock ? In neither of them did the- heart present the visible traces of any such injury as could be conceived to proceed immediately from violence. Still I do not know that any thing short of absolute disruption must neces- sarily leave the characteristic marks of itself ever afterwards. It is conceivable that the injury itself might not be of a per- manent nature, and yet abide long enough to lay the foimdation of permanent disorganisation. Further it is possible that, in these same cases, causes might have been found in other parts of the body (for such it will presently appear there often really are) entitled to a share in producing what was found in the heart. Nevertheless the shock, that had been suffered in both cases, was a remarkable part of their clinical history. The patients themselves constantly ascribed to it the origin of all their malady. We cannot therefore exclude it from our con- sideration, and may venture, without speculating further upon what cannot be proved, to regard it as in some manner power- fully conducive to the hypertrophy and dilatation of the heart, and to the fatal event. LECT. XXIX.] I)ILA1'ATI<)\ nF AOIJTA. 353 LECTURE XXIX. CLINICAL HISTORY OF 1 HE IIKAKl's LNSOUNDNICSS FROM DIS- ORGANISATION CONTINUE]). CAUSES EXTERIOR TO THE HEART CONDUCIVE TO IT. DILATATION AND CONTRACTION OF THE AORTA. CERTAIN DISEASES OF THE LUNGS. — CURVATURE OF THE SPINE AND DEFORMITY OF THE CHEST. GICNERAL DIS- EASE OF THE ARTERIES. COINCIDENT DISEASES OF DISTANT TARTS. LIVER. SPLEEN. KIDNEYS. ]>EAR ill mind that wc have been considering the clinical hisfori/ of the heart's organic unsoundness after it is already brought within the scope of clinical diagnosis. This clinical history we have thus far found involved in its own prior diseases or its prior accidental injuries, Avhich are tantamount to diseases, and their unrepaired effects. The heart itself then lias thus far appeared to contain the conditions conducive to its dis- organisation. But the clinical history of the heart's organic imsoundness takes a wider ran^e. Conditions conducive to it are found, beyond the heart itself, even in other organs both near and remote, and in the constitution at large ! Of these conditions themselves, in the mode of their opera- tion upon the heart, so as to alter its structure, some are easy, and some are difficult to understand, and some in the present state of our knowledge, quite inexplicable. Dilatation of the aorta is often found coincident with active or passive dilatation of one or several of the heart's cavities. Cases, however, are met with, where dilatation of the aorta subsists without the heart having suffered any change in its natural structure. The question, therefore, naturally suggests itself, whether the coincidence, when it does occur, really and truly exhibits the relation of cause and effect ? Cause and effect ! These terms are allowed, indeed, in 23 354 CLINICAL MEDICINE. [lECT. XXIX i pathological reasoning; but its svibject-matter seldom admits their use in that strict sense which philosophy would require. In patholog}^, so many counteracting circumstances, known and unknown, are perpetually liable to intervene, that it can haixUy ever be said of anything that it exerts a power out of which some other thing must ncccsmrihj proceed. The present state of our knowledge will seldom permit us to affirm more than that a certain morbid action, or morbid structure, has its ten- denc}?- to such and such a consequence — not its sure termination in it. Thus a dilatation of the aorta may naturally tend to dilata- tion of the cavities of the heart, while circumstances may be perpetually interfering with the result. Of these, some are easily appreciated. A dilatation of the aorta may exist, but the still and seden- tary life of the individual may postpone or prevent the full force of the injury from being felt by the heart. Again, since all harm resulting to the heart from the aorta must be through the medium of the current of blood passing from one to the other, it will be more or less likely to take effect according to the greater or less plenitude of the blood-vessels ; and thus in the present case of dilated aorta, the full and plethoric will, there is reason to believe, suffer disorganisation of the heart sooner and more surely than the pale and exsanguine. Disorganisation of the heart from a dilated aorta being of tardy growth under all circumstances, and being still liable to be further postponed by accidents, it cannot happen contrary to our expectation that death should often take place and exhibit the one without the other. But by what agency does the heart become disorganised in consequence of a dilated aorta? It is, probably, by its own extraordinary efforts to overcome a virtual impediment to the circulation. Blood being immediately poured from it into a larger space than natural, requires from the heart an augmen- tation of its motive impulse. I believe that a dilatation of the aorta is more apt to dis- turb the action of the heart, and ultimately to injure its struc- ture, when it occurs as a general enlargement of the vessel over a certain space, than as an abrupt expansion in the form of a sac ; and I believe also, the nearer it is found to the origin LEcr. XXIX.] coNTitAtrnoN oi'^ AoirrA. 355 of tlio aorta, tlio more capable it is of producing- these effects.* But an unnatural narrowness of the aorta no less than its dilatation there is reason to place among- the causes conducive to disorg-anisation of the heart. I have not been able to lay my hands upon the notes I took of a case illustrating the point in question, which occurred ■several years ago. The circumstances, however, were so strik- ing-, that I can trust my memory, I think, for the accuracy of the detail. A little boy, between four and five years old, and very puny of its age, was brought to the hospital in its mother's arms. Its countenance betrayed great anguish, and its respiration was •exceedingly hurried ; and there was no part of the chest where the heart could not be felt acting with enormous impulse ; at the same time the pulse at the wrist manifested nothing extra- •ordinar}'. There was, I recollect, no remarkable blueness of tthe lips, or other evidence of impediment to the passage of blood through the lungs : the hurried breathing seemed to depend upon the simple vehemence of the heart's action. What could be the nature of the case ? The age of the ■child first made me think of congenital malformation. : but all the malformations I was acquainted with were such as had the efiect of mixing venous and arterial blood, and distributing it throughout the body. But here no such effect was ajDparent. jVIy next impression was, that the heart had become dilated in consequence of an adherent pericardium ; but the mother could * The aorta was found greatly dilated in a certain case, cj[uite from its -origin to its arch, and thickly interspersed with bony scales, like drops of white wax which had cooled ; and the heart itself so thickened in its whole mnscular structure, and so dilated in all its cavities, as to equal the heart ■of an ox. — Morgagnl, xviii. 28. The aorta, in another case, was greatly dilated ; quite from its origin to the neighbourhood of the emulgent arteries, and rigid tlirough the whole ■of this tract, from the deposition of bony lamella? ; and all the parietes of the heart thickened ; and both ventricles, especially the left, mucli dilated. Ibid. 30. In another, the aorta was dilated from its origin throughout half its descending portion through the chest, its internal lining being discoloured and thickened, and furrowed, and exhibiting here and there some bony lamella) ; while tlie heart had both its ventricles much enlarged in tlu'ir ■capacity, and somewliat thicker than natural in their parietes. — Ihid. 3-1. 356 CLINICAL MEDICINE. [lECT. XXIX. give no account of any rheumatic attack which the child had ever suffered, or of any acute disease whatever which had fallen expressly upon the chest ; on the contrary, she had not observed the disorder to arise at any particular time, nor could she trace it to any particular cause. The child, she said, was healthy for some time after its birth, and it was not until after it was weaned that the "strange heatuir/" within its chest was noticed, which had continued gradually to increase. A few days only elapsed between its admission into the hos- pital and its death. The manner of its death was peculiar : it suddenly became pale, and the heart, which an instant ago struck forcibly against the ribs, was only just perceived to move ; the impulse was gone, and dissolution was looked for the next moment ; but in this state, pale and cold, yet appa- rently sensible, with the heart just moving, and air passing in and out of the lungs, as it were mechanically, the poor child survived during a whole day, and then it ceased to exist. UjDon dissection the heart was found enormously enlarged, and every cavity greatly exceeding its natural capacity. To what extent, or in what parts its muscular structure was thick- ened or attenuated, I do not recollect ; but the most remarkable circumstance which attracted our attention was this — that the aorta, and all its principal branches, while they were entirely free from disease, were by more than one-half less than their natural capacity. The case upon record which bears the nearest resemblance to that just related, is one reported by Meckel, in the History of the Eoyal Academy of Berlin, for the year 1750. The subject was a puny girl, 18 years old. No further account is given of her history than that she had been, from time to time, subject to joalpitation and anguish, and trembling of the limbs, from her infancy to her 14th year, and thenceforward the pal- pitation and anguish had become constant and more severe until her death. Upon dissection the heart was found enormously enlarged, and the aorta, throughout its whole course, especially through the chest, and all its principal branches, marvellously narrowed. The heart had both its ventricles dilated, and their substance more soft than natui'al ; it had its auricles also dilated, but the /fft to a degree far greater than Jiny other cavity. It was LECT. XXIX.] CONTRA CTIOX OF AORTA. 357 capable of containing the prodigious quantity of twelve ounces, while the coi'responding ventricle only contained four. The aorta was not more than half the diameter of the pulmonary artery. From the history of these cases, it is evident that the nar- rowness of the aorta and its branches was a congenital malfor- mation, and that enlargement of the heart was a natural and necessar}^ consequence, and perhaps even an indispensable condition for the continuance of life. But this narrowing of the aorta need not be so extensive as that which has been described, and yet may have the same effect upon the heart in influencing the dilatation of its cavities. A very limited and partial narrowing may, according to its situation, produce a mechanical impediment, of which the stress may fall upon the heart equally, or almost equally, with one which is more extensive. In a case where the aorta is repre- sented to have been ^'contracted to an amazing narrowness" near the heart, the heart itself is said to have been dilated to an extent "■ never before seen," the dilatation appertaining especially to the rigiit auricle and ventricle.* Surely a con- traction of its calibre in this situation would serve as efiectually to impede the exit of blood from the heart as if it belonged to the whole aorta and all its branches. But when contractions of the aorta occur in situations more remote, there is much less certainty of any injury resulting from them to the structure of the heart. Among the causes exterior to the heart capable of producing its disorganisation, we must not omit the consideration of those which are seated in the lungs ; for none are better authenti- cated. Owing to the peculiar structure of the lungs, and their proximity to the heart, inflammation and its consequences (eff"usions and depositions) may well be conceived to offer impediments to the transmission of blood, which the heart must feel and resent. And they really do so. The efi'ects upon the heart, however, are partial only, and limited to the right side, and consist of dilatation of its cavities. Whatever diseases of the lungs can so change their structure as greatly to limit the free space for the transmission of blood, if they be diseases of frequent occurrence, must, one should * Mor"a"ni, xviii. 6. 359 CLINICAL MEDICINE. [lECT. XXIX.. suppose, be all well kiioMTi as frequent, and almost certain, causes of this partial dilatation of tlie heart. And in the sub- jects of pulmonary consumption, where the natural structure of the lungs is often obliterated to such an extent that hardly any free space remains for the transmission of blood, one might expect to find the most numerous instances of such dilatation. But, in point of fact, it is rarely found in combination with tubercular disease of the lungs. Now, it is not the quantity of impediment within the lungs- themselves taken absolutely, but relatively to the quantity of blood required to circulate through them, which becomes thc' occasion of the heart's dilatation. Thc impediment may be- A'cry great ; so great that one Italf of the lungs may be solidified, and yet there may be no dilatation of the right cavities, if at the same time the mass of circidating blood be diminished by one-half. This is actuallj^ the case in pulmonary consumption. During its j^rogress there are operations at work in the consti- tution at large, which are daily deducting something from the general mass of blood ; so that in the end, though there be but little of the lungs in a pervious condition, yet that little is still adequate to transmit thc little blood which remains in the cir- culation ; and thus, though the absolute impediment in the lungs is very great, there is no detention of blood in thc right cavities of the heart, and no dilatation of them. It is remarkable in this disease, how those symptoms whichi are considered to be of the most fatal omen, seem to arise out of an express provision of nature for prolonging the duration of life. The hectic perspiration, the occasional diarrhoea, the sputa, the languid powers of nutrition, all tend to keep down» the current of blood to that measure which can obtain an easy passage through the lungs. On any other terms the joatient would die of sufibcation suddenly, and at an earlj' jicriod of his. disease. Nevertheless, it is still the tendency ox obstruction in the- lungs to produce accumulation of blood in, and consequent dila- tation of, the right cavities of the heart ; although in phthisis jDulmonalis, where the obstruction is the greatest, such dilata- tion is rarely met with, owing to peculiar conditions of thc general circulation. The influence of causes seated in the lungs in producing dilatation of the right side of the heart, is.. LECT. XXIX.] DKFOrtMITIICS OF CRKST. 359 best sccu ill diseases which; while they create great impediment to the transmission of blood through them, may nevertheless subsist for years without much injury to the general health, without si^ecial injury at least to the nutrient functions of the body, and without any notable diminution of the general mass of blood. fSuch are the diseases commonl}^ called adhmatic, diseases which differ from each other in their essential nature, but agree in certain common effects, such as in impeding the respiration permanently or at frequent intervals ; in permitting the con- tinuance of life for years ; and in not diminishing the general bulk of the body, or the general mass of the blood, but some- times even allowing both to increase. According to my own observation, the subjects of asthmatic diseases furnish the most frequent instances of dilatation of the heart from causes seated in the lungs. Deformity of the chest, resulting from curvature of the spine is justly reckoned among the causes capable of producing disorganisation of the heart, especially active or passive dilata- tion ; or, it may bo, dilatation both of one kind and the other CO- existing in the several cavities of the same heart. The whole chest being distorted and narrowed, and the lungs straitened and imprisoned, and the heart itseK displaced and the aorta tortuous, and the liver bearing hard with its external pressure, lead upon the whole to as large an amount of hurtful encroach- ment of organ iipon organ as can possibly be conceived. And this encroachment cannot be without mechanical impediment ; and this impediment cannot be without hurt and hindrance, first, to the functions, and then to the structure of such organs as the heart and lungs. Of the causes, then, exterior to the heart capable of pro- ducing its disorganisation, these are they which are the most acknowledged and the best understood ; dilatation and contrac- tion of the aorta ; certain diseases of the lungs ; and deformities of the chest. They seem all to bring about their common result by the one way of impediment to the free passage of blood from the heart into the arteries. That active and passive dilatations of the heart may result from impediments to the course of the circulation, either real or virtual, is one of those conclusions in pathology most certainly 360 CLINICAL MEDICINE. [lECT. XXIX. established. But the theory, which is unquestionably just within certain limits, has been enlarged to an extent which neither facts nor right reason will verify ; for some have dis- covered in an aneurism at a remote part of the aorta, or in a plug of coagulated blood in some of its immediate branches, positive impediments capable of being felt and resented by the heart, and thus necessitating its disorganisation. And others have been too ready in resolving into cirtual impediments many merely speculative modes of morbid action, which belong to the capillary blood-vessels. With respect to a real mechanical impediment, it is probable that, in order to become a certain and effective cause of disor- ganisation of the heart, it must be situated either in the heart itself, or not very remotely from it. I certainly never met with a case myself, and I find none upon record, where, the heart being disorganised, and no disease being found at any of its orifices, and none in the lungs, and none in the thoracic aorta, there was still any mechanical impediment at a remoter part of the vascular system to which its disorganisation could be fairly ascribed. When any such distant impediment exists, every collateral artery, given off between the obstructed or contracted portion and the heart, will furnish it an additional security against injury ; for how far soever the obstruction is felt from the seat of the impediment, so far these vessels will and must dilate, and will thus, in proportion to their number, re-establish the freedom of the circulation, and effectually secure it. With respect to impediments arising out of morbid actions in distant parts, I cannot so easily accommodate my mind to an hypothesis as to believe all that is pretended concerning them. I find depositions of lymph in the cellular texture of a limb, constituting what is called a solid a^dema ; I find tubercular depositions in any organ, such as the liver ; I find even simple inflammations of distant parts seriously insisted upon, as if they were well authenticated causes of disorganisation of the heart when they have hajjpened to exist together with it. And the theory of mechanical obstruction is brought in confirmation of the fact. For, say the theorists, where there is inflammation, there must be spasm of the extreme vessels, and spasm is tantamount to obstruction. And again, where there is effusion or deposi- tion of any kind, there must be pressure upon the neighbouring LECr.XXIx] MECHANICAL OBSTRUCTIONS TOCIIiClJLATl(>N. 361 blood- vessels, and pressure must produce obstruction, partial or complete, according to its degree. Xow, by parity of reasoning, there is no conceivable sort of morbid action in any part of the body, which may not be con- sti'ucd into an obstruction of the blood-vessels, and thus conjured into a possible cause of disorganisation of the heart. But, to dwell only on those specified conditions of other parts of which there is no doubt that they hold the place of causes naturally conducive to tlio heart's organic unsoundness, namely, dilatation and contraction of the aorta and certain pulmonary diseases and deformity of the chest, has our know- ledge of them, as such, any real practical use 'i Indeed it has. For these causes, conducive to its organic unsoundness, are ever at work, covertly or manifestly, in beginning, furthering, and accomplishing it. They are parts of its living pathology. Being parts of its living pathology, they belong to its clinical history so far as during life they can become objects of our knowledge. And in part they can, and in part they cannot . Dilatation and contraction of the aorta are reserved for •detection after death. It is not until then, that they are found ■to have been covertly working out the heart's unsoundness -during life. Thej^ did not, and could not enter into its clinical histor3\ But the peculiar forms of pulmonary disease are cognizable •enough during life, and are manifestly seen all along bearing hard upon the heart, and the heart's unsoundness is seen all .alon<> growino- under them. In the treatment of such affec- tions of the lungs we never disregard what may happen, or what has already happened, to the heart. The lungs, beside what their own impeded functions require for themselves, are perpetually suggesting to us indications, how best to prevent or postpone or palliate the expected or the actual and growing unsoundness of the heart. Deformity of the chest too is cognizable enough. But it is a thing of degrees. It may be extreme from birth. And then, the heart in its first growth may suffer itself to be so wa^csted from its true place and shape, and from its true bulk and •capacity, that its vital functions become impossible, and the child quickly dies. Or it may be such from birth as to make ithe heart grow shapeless, monstrous, and out of place, and yet 362 CLINICAL MEDICINE. [lECT. XXIX» allow it to continue the offices of life for years, provided care be taken to avert from it all casual influences of an injurious sort. Thus the very deformed often reach the age of puberty, and then die ; or under a penal vigilance of all occasions^ accidents, and circumstances that can harm them, they some- times attain a moderately advanced period of life. In almost all cases, where life continues with extreme deformity of the chest, the organic unsoundness of the parts within is complex. The lungs and the heart suffer equally ; and, beside the common causes conducive to the uusoimdness of both alike, each is continually helping on the unsoundness of the other. Unquestionably a numerous class of cases still remains, in which the heart is found with its cavities dilated, and its muscular substance in a state either of hypertrophy or of attenuation, while at the same time nothing is discovered to which this disorganisation can be expressly ascribed, either in the heart itself, or in the thoracic aorta, or in the lungs, or iu deformities of the chest ; and we are left to seek in the con- dition of more distant parts, or iu the habits or casualties of the patient's life, or in his previous diseases, for something- which will bear to be suspected as the cause or occasion of its production. These cases must now shortly engage our attention. In the phenomena of health and of disease, there are things concerning which the present state of our knowledge is totally inadequate to explain how they are or why they are : yet of many such things Ave may still know more than their bare existence. We meet with peculiar organic diseases, and we may be at a loss to explain the exact physical process of their- production ; yet we ]nay remark many circumstances so con- stantly preceding or accompanying them, that avc can hardly doubt that there exists between them some kind, although we know not what kind, of physical alliance. It has never occurred to me to meet with active or passive dilatation of the heart in a body otherwise perfectly sound. The concomitant diseases have not indeed had, at all times, a strictly accountable connection with it ; yet the}- have, in a manner, rendered its existence more intelligible. The coincidence of disorganisation of the heart, especiallj'' LECT. XXIX.] OIJSTIUXTION BY JHSEASED AKTEUIE.S. 863 of its liypertropliy and dilatation, ^Yitl^ the marks of chronic disease extensively diHuscd tliroughout the arterial system, is very common. The internal lining oi' the arteries, here and there, in various situations, and upon the wliole to a great extent, has lost its transparency, and become a little thickened, and dotted wiih. cartilaginous and atheromatoiis and bony deposits ; but nowhere has its change of structure been such as could be thought capable of producing injury simpl}^ by mechanical impediment. And this inay be all that is found in the body to account for the heart's unsoundness. But this mere beginning of disease in the arteries, which is indeed a small matter when we see it in single blood-vessels, becomes a great matter, and capable of great eifects when it spreads itself throughout the bod}^ It may well be concei>'ed enough to make itself felt by the heart. In looking over such records of cases as I possess, it is • remarkable in how large a proportion of them I find this con- dition of the arteries coincident with hypertrophy and dilatation of the left ventricle. And this, I have said, may be all that is- found in the body to account for the heart's unsoundness. But oftentimes there is this and much more than this. We see that the disease of the arteries has reached a more onward stage, and made larger and more extensive deposits of cartilage ■and atheroma and bone, while the liver and the spleen and the kidneys are found enlarged and granulated ; and the trans- parent membranes, as the pleura and peritoneum, are thickened and opaque. These are evidences and efi'ects of chronic in- flammation, and have a pathological connection one with .another. And it is strange, if they have not also a connection with the disease difi'used throughout the arteries ; and it is strange, moreover, if they have not all a connection with the hypertrophy and dilatation of the heart. But in specvilating upon diseases and disorganisations of other parts as the causes conducive to diseases and disorganisa- tions of the heart, we must be cautious that we do not invert the real order of things. For the order of causation will be found to run as often from the heart to other organs as from other organs to the heart. Must we, however, be content to speak of these things as- customary coincidences only, or must we try and prove the- ■364 CLINICAL MEDICINE. [lECT. XXIX. essential nature of tlie relation which seems to bind the several sirgans together in one pathological link, and the heart among the rest ? The truth is, we can only speak of them as coinci- dences. "We are not sure that we possess a single element towards a proof of the process how they come to pass, and how ihey are brought together. "We want new facts to help us. And indeed this is the age for finding out new facts, and testing their truth under various aspects. But the time has not -come for putting them all in order, and assigning them their •right places, and building up systems with them. The greatest single pathological fact disclosed during the present centurj^, is that which Ave owe to the research and ■sagacity of Dr. Bright — the murbid imsoundness of the kidneys -attested by the presence of albumen in the urine. It is a fact largely suggestive of things beyond itself, of new elements H^f disease, and new modes of morbid action. With whatever forms of disease, and in whatever organs of the body, the physician has to do, he will sometimes meet with this fact in them all. And assuredly wherever he finds it, it holds an important pathological place, though the present state of our knowledge may not enable us to say what that place is. It is easy to talk disparagingly of the best things. It is easy to talk of this, merelj^ as of one more incurable malady, added -to the many which were too M'ell known already. But do we' not judge of present diseases, whence they are, what they are, •and whither they tend, by the nature of the coincident facts belonging to their clinical history ? Now coincident with how many and with what various classes of disease do we not find this momentous fact, this sure index of granulated kidney, •idbuminous urine ? There are dropsies, and yet at the same time no known impediments of the circulation to satisfy their mechanical theor}', or that theory of them which is best understood. But their great coincident fact is albuminous urine. There are haemorrhages, bronchial and pulmonary, with •sound heart and sound lungs ; intestinal haemorrhages, with ■soimd abdominal viscera. But their great coincident fact is albuminous urine. There are inflammations of external surfaces, as erysipelas ; •